10001131131020 has 24 divisors (see below), whose sum is σ = 21033582499104. Its totient is φ = 3994508238336.

The previous prime is 10001131130951. The next prime is 10001131131041. The reversal of 10001131131020 is 2013113110001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 10001131130986 and 10001131131004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 371499584 + ... + 371526503.

It is an arithmetic number, because the mean of its divisors is an integer number (876399270796).

Almost surely, 2^{10001131131020} is an apocalyptic number.

10001131131020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10001131131020 is an abundant number, since it is smaller than the sum of its proper divisors (11032451368084).

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

10001131131020 is a wasteful number, since it uses less digits than its factorization.

10001131131020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743026769 (or 743026767 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 10001131131020 its reverse (2013113110001), we get a palindrome (12014244241021).

The spelling of 10001131131020 in words is "ten trillion, one billion, one hundred thirty-one million, one hundred thirty-one thousand, twenty".