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10231201031 = 67152704493
BaseRepresentation
bin10011000011101001…
…11011110100000111
3222102000210212022112
421201310323310013
5131423141413111
64411122051235
7511352526302
oct114164736407
928360725275
1010231201031
114380278847
121b964a9b1b
13c7087a30c
146d0b47b39
153ed32be8b
hex261d3bd07

10231201031 has 4 divisors (see below), whose sum is σ = 10383905592. Its totient is φ = 10078496472.

The previous prime is 10231201009. The next prime is 10231201051. The reversal of 10231201031 is 13010213201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10231201031 is a prime.

It is a super-2 number, since 2×102312010312 (a number of 21 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 = 10231200997 and 10231201015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10231201051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76352180 + ... + 76352313.

It is an arithmetic number, because the mean of its divisors is an integer number (2595976398).

Almost surely, 210231201031 is an apocalyptic number.

10231201031 is a deficient number, since it is larger than the sum of its proper divisors (152704561).

10231201031 is an equidigital number, since it uses as much as digits as its factorization.

10231201031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152704560.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 10231201031 its reverse (13010213201), we get a palindrome (23241414232).

The spelling of 10231201031 in words is "ten billion, two hundred thirty-one million, two hundred one thousand, thirty-one".

Divisors: 1 67 152704493 10231201031