10131323020221 has 64 divisors (see below), whose sum is σ = 15276802222080. Its totient is φ = 5925667587840.

The previous prime is 10131323020211. The next prime is 10131323020229. The reversal of 10131323020221 is 12202032313101.

It is not a de Polignac number, because 10131323020221 - 2³¹ = 10129175536573 is a prime.

It is a super-2 number, since 2×10131323020221² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10131323020229) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 117113035 + ... + 117199511.

It is an arithmetic number, because the mean of its divisors is an integer number (238700034720).

Almost surely, 2^{10131323020221} is an apocalyptic number.

It is an amenable number.

10131323020221 is a deficient number, since it is larger than the sum of its proper divisors (5145479201859).

10131323020221 is a wasteful number, since it uses less digits than its factorization.

10131323020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87346.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 10131323020221 its reverse (12202032313101), we get a palindrome (22333355333322).

The spelling of 10131323020221 in words is "ten trillion, one hundred thirty-one billion, three hundred twenty-three million, twenty thousand, two hundred twenty-one".