52120012431 has 64 divisors (see below), whose sum is σ = 77546004480. Its totient is φ = 30988679040.

The previous prime is 52120012391. The next prime is 52120012463. The reversal of 52120012431 is 13421002125.

It is not a de Polignac number, because 52120012431 - 2⁹ = 52120011919 is a prime.

It is a super-2 number, since 2×52120012431² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52120012398 and 52120012407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52120012331) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 34492966 + ... + 34494476.

It is an arithmetic number, because the mean of its divisors is an integer number (1211656320).

Almost surely, 2^52120012431 is an apocalyptic number.

52120012431 is a deficient number, since it is larger than the sum of its proper divisors (25425992049).

52120012431 is a wasteful number, since it uses less digits than its factorization.

52120012431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1956.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 52120012431 its reverse (13421002125), we get a palindrome (65541014556).

The spelling of 52120012431 in words is "fifty-two billion, one hundred twenty million, twelve thousand, four hundred thirty-one".