20213131010 has 64 divisors (see below), whose sum is σ = 37242716544. Its totient is φ = 7897344000.

The previous prime is 20213130997. The next prime is 20213131013. The reversal of 20213131010 is 1013131202.

It is not an unprimeable number, because it can be changed into a prime (20213131013) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 30034034 + ... + 30034706.

It is an arithmetic number, because the mean of its divisors is an integer number (581917446).

Almost surely, 2^20213131010 is an apocalyptic number.

20213131010 is a deficient number, since it is larger than the sum of its proper divisors (17029585534).

20213131010 is a wasteful number, since it uses less digits than its factorization.

20213131010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139.

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

Adding to 20213131010 its reverse (1013131202), we get a palindrome (21226262212).

The spelling of 20213131010 in words is "twenty billion, two hundred thirteen million, one hundred thirty-one thousand, ten".