20311132010 has 32 divisors (see below), whose sum is σ = 39570249600. Its totient is φ = 7461799488.

The previous prime is 20311131977. The next prime is 20311132013. The reversal of 20311132010 is 1023111302.

It is not an unprimeable number, because it can be changed into a prime (20311132013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 366692 + ... + 418431.

It is an arithmetic number, because the mean of its divisors is an integer number (1236570300).

Almost surely, 2^20311132010 is an apocalyptic number.

20311132010 is a deficient number, since it is larger than the sum of its proper divisors (19259117590).

20311132010 is a wasteful number, since it uses less digits than its factorization.

20311132010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785342.

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

Adding to 20311132010 its reverse (1023111302), we get a palindrome (21334243312).

The spelling of 20311132010 in words is "twenty billion, three hundred eleven million, one hundred thirty-two thousand, ten".