20311321010 has 32 divisors (see below), whose sum is σ = 37316868480. Its totient is φ = 7958127232.

The previous prime is 20311320971. The next prime is 20311321021. The reversal of 20311321010 is 1012311302.

It is a super-2 number, since 2×20311321010² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11414 + ... + 201873.

It is an arithmetic number, because the mean of its divisors is an integer number (1166152140).

Almost surely, 2^20311321010 is an apocalyptic number.

20311321010 is a deficient number, since it is larger than the sum of its proper divisors (17005547470).

20311321010 is a wasteful number, since it uses less digits than its factorization.

20311321010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213490.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 20311321010 its reverse (1012311302), we get a palindrome (21323632312).

The spelling of 20311321010 in words is "twenty billion, three hundred eleven million, three hundred twenty-one thousand, ten".