252131031403 has 4 divisors (see below), whose sum is σ = 252251843760. Its totient is φ = 252010219048.

The previous prime is 252131031401. The next prime is 252131031407. The reversal of 252131031403 is 304130131252.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 252131031403 - 2¹ = 252131031401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252131031401) 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, 60403048 + ... + 60407221.

It is an arithmetic number, because the mean of its divisors is an integer number (63062960940).

Almost surely, 2^252131031403 is an apocalyptic number.

252131031403 is a deficient number, since it is larger than the sum of its proper divisors (120812357).

252131031403 is a wasteful number, since it uses less digits than its factorization.

252131031403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120812356.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 252131031403 its reverse (304130131252), we get a palindrome (556261162655).

The spelling of 252131031403 in words is "two hundred fifty-two billion, one hundred thirty-one million, thirty-one thousand, four hundred three".