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1031011061213 = 710211381104459
BaseRepresentation
bin11110000000011010000…
…11000100110111011101
310122120012221012120002202
433000031003010313131
5113343002312424323
62105350121101245
7134326262265140
oct17001503046735
93576187176082
101031011061213
11368281958201
12147997627825
13762bac716c3
1437c88c7c057
151bc44008d28
hexf00d0c4ddd

1031011061213 has 16 divisors (see below), whose sum is σ = 1180317774720. Its totient is φ = 882210484800.

The previous prime is 1031011061207. The next prime is 1031011061221. The reversal of 1031011061213 is 3121601101301.

It is a cyclic number.

It is not a de Polignac number, because 1031011061213 - 26 = 1031011061149 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031011061513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9817778 + ... + 9922236.

It is an arithmetic number, because the mean of its divisors is an integer number (73769860920).

Almost surely, 21031011061213 is an apocalyptic number.

It is an amenable number.

1031011061213 is a deficient number, since it is larger than the sum of its proper divisors (149306713507).

1031011061213 is a wasteful number, since it uses less digits than its factorization.

1031011061213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106868.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 1031011061213 its reverse (3121601101301), we get a palindrome (4152612162514).

The spelling of 1031011061213 in words is "one trillion, thirty-one billion, eleven million, sixty-one thousand, two hundred thirteen".

Divisors: 1 7 1021 1381 7147 9667 104459 731213 1410001 9870007 106652639 144257879 746568473 1009805153 147287294459 1031011061213