403131302252 has 192 divisors, whose sum is σ = 893114449920. Its totient is φ = 155404617984.

The previous prime is 403131302227. The next prime is 403131302261. The reversal of 403131302252 is 252203131304.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 487461863 + ... + 487462689.

It is an arithmetic number, because the mean of its divisors is an integer number (4651637760).

Almost surely, 2^403131302252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 403131302252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (446557224960).

403131302252 is an abundant number, since it is smaller than the sum of its proper divisors (489983147668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

403131302252 is a wasteful number, since it uses less digits than its factorization.

403131302252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1540 (or 1538 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 403131302252 its reverse (252203131304), we get a palindrome (655334433556).

The spelling of 403131302252 in words is "four hundred three billion, one hundred thirty-one million, three hundred two thousand, two hundred fifty-two".