10113030021531 has 4 divisors (see below), whose sum is σ = 13484040028712. Its totient is φ = 6742020014352.

The previous prime is 10113030021469. The next prime is 10113030021539. The reversal of 10113030021531 is 13512003031101.

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

It is not a de Polignac number, because 10113030021531 - 2⁷ = 10113030021403 is a prime.

It is a super-2 number, since 2×10113030021531² (a number of 27 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 = 10113030021498 and 10113030021507.

It is not an unprimeable number, because it can be changed into a prime (10113030021539) 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, 1685505003586 + ... + 1685505003591.

It is an arithmetic number, because the mean of its divisors is an integer number (3371010007178).

Almost surely, 2^{10113030021531} is an apocalyptic number.

10113030021531 is a deficient number, since it is larger than the sum of its proper divisors (3371010007181).

10113030021531 is an equidigital number, since it uses as much as digits as its factorization.

10113030021531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3371010007180.

The product of its (nonzero) digits is 270, while the sum is 21.

Adding to 10113030021531 its reverse (13512003031101), we get a palindrome (23625033052632).

The spelling of 10113030021531 in words is "ten trillion, one hundred thirteen billion, thirty million, twenty-one thousand, five hundred thirty-one".