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1031001112031 = 11472069963847
BaseRepresentation
bin11110000000011000111…
…01000111110111011111
310122120012020111002101112
433000030131013313133
5113342442241041111
62105345123532235
7134326111566602
oct17001435076737
93576166432345
101031001112031
11368277282240
1214799422a07b
13762b8b9a007
1437c8780c339
151bc431e0e8b
hexf00c747ddf

1031001112031 has 16 divisors (see below), whose sum is σ = 1149215247360. Its totient is φ = 916887422880.

The previous prime is 1031001112027. The next prime is 1031001112049. The reversal of 1031001112031 is 1302111001301.

It is a happy number.

It is not a de Polignac number, because 1031001112031 - 22 = 1031001112027 is a prime.

It is a super-2 number, since 2×10310011120312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1031001111997 and 1031001112015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031001112081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 587750 + ... + 1551596.

It is an arithmetic number, because the mean of its divisors is an integer number (71825952960).

Almost surely, 21031001112031 is an apocalyptic number.

1031001112031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1031001112031 is a deficient number, since it is larger than the sum of its proper divisors (118214135329).

1031001112031 is a wasteful number, since it uses less digits than its factorization.

1031001112031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965974.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 1031001112031 its reverse (1302111001301), we get a palindrome (2333112113332).

The spelling of 1031001112031 in words is "one trillion, thirty-one billion, one million, one hundred twelve thousand, thirty-one".

Divisors: 1 11 47 517 2069 22759 97243 963847 1069673 10602317 45300809 498308899 1994199443 21936193873 93727373821 1031001112031