20310253156 has 12 divisors (see below), whose sum is σ = 35550168192. Its totient is φ = 10153062248.

The previous prime is 20310253147. The next prime is 20310253177. The reversal of 20310253156 is 65135201302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 493840 + ... + 533383.

It is an arithmetic number, because the mean of its divisors is an integer number (2962514016).

Almost surely, 2^20310253156 is an apocalyptic number.

It is an amenable number.

20310253156 is a deficient number, since it is larger than the sum of its proper divisors (15239915036).

20310253156 is a wasteful number, since it uses less digits than its factorization.

20310253156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032170 (or 1032168 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 20310253156 its reverse (65135201302), we get a palindrome (85445454458).

The spelling of 20310253156 in words is "twenty billion, three hundred ten million, two hundred fifty-three thousand, one hundred fifty-six".