10102111231 has 2 divisors, whose sum is σ = 10102111232. Its totient is φ = 10102111230.

The previous prime is 10102111211. The next prime is 10102111259. The reversal of 10102111231 is 13211120101.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10102111231 - 2²³ = 10093722623 is a prime.

It is a super-2 number, since 2×10102111231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10102111211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5051055615 + 5051055616.

It is an arithmetic number, because the mean of its divisors is an integer number (5051055616).

Almost surely, 2^10102111231 is an apocalyptic number.

10102111231 is a deficient number, since it is larger than the sum of its proper divisors (1).

10102111231 is an equidigital number, since it uses as much as digits as its factorization.

10102111231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 10102111231 its reverse (13211120101), we get a palindrome (23313231332).

The spelling of 10102111231 in words is "ten billion, one hundred two million, one hundred eleven thousand, two hundred thirty-one".