10120344531 has 24 divisors (see below), whose sum is σ = 14978926032. Its totient is φ = 6072792000.

The previous prime is 10120344469. The next prime is 10120344551. The reversal of 10120344531 is 13544302101.

It is a happy number.

It is not a de Polignac number, because 10120344531 - 2⁶ = 10120344467 is a prime.

It is a super-2 number, since 2×10120344531² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10120344551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101356 + ... + 174681.

It is an arithmetic number, because the mean of its divisors is an integer number (624121918).

Almost surely, 2^10120344531 is an apocalyptic number.

10120344531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10120344531 is a deficient number, since it is larger than the sum of its proper divisors (4858581501).

10120344531 is a wasteful number, since it uses less digits than its factorization.

10120344531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276163 (or 276152 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 10120344531 its reverse (13544302101), we get a palindrome (23664646632).

The spelling of 10120344531 in words is "ten billion, one hundred twenty million, three hundred forty-four thousand, five hundred thirty-one".