10121430531 has 12 divisors (see below), whose sum is σ = 14107503368. Its totient is φ = 6454244544.

The previous prime is 10121430497. The next prime is 10121430541. The reversal of 10121430531 is 13503412101.

It is not a de Polignac number, because 10121430531 - 2⁹ = 10121430019 is a prime.

It is a super-2 number, since 2×10121430531² (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 = 10121430498 and 10121430507.

It is not an unprimeable number, because it can be changed into a prime (10121430541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3187270 + ... + 3190443.

Almost surely, 2^10121430531 is an apocalyptic number.

10121430531 is a deficient number, since it is larger than the sum of its proper divisors (3986072837).

10121430531 is an equidigital number, since it uses as much as digits as its factorization.

10121430531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6377762 (or 6377739 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 10121430531 its reverse (13503412101), we get a palindrome (23624842632).

The spelling of 10121430531 in words is "ten billion, one hundred twenty-one million, four hundred thirty thousand, five hundred thirty-one".