20311356162 has 16 divisors (see below), whose sum is σ = 40624108992. Its totient is φ = 6770219280.

The previous prime is 20311356119. The next prime is 20311356167. The reversal of 20311356162 is 26165311302.

It is not an unprimeable number, because it can be changed into a prime (20311356167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 312612 + ... + 371952.

It is an arithmetic number, because the mean of its divisors is an integer number (2539006812).

Almost surely, 2^20311356162 is an apocalyptic number.

20311356162 is an abundant number, since it is smaller than the sum of its proper divisors (20312752830).

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

20311356162 is a wasteful number, since it uses less digits than its factorization.

20311356162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116393.

The product of its (nonzero) digits is 6480, while the sum is 30.

Adding to 20311356162 its reverse (26165311302), we get a palindrome (46476667464).

The spelling of 20311356162 in words is "twenty billion, three hundred eleven million, three hundred fifty-six thousand, one hundred sixty-two".