1131210013020 has 24 divisors (see below), whose sum is σ = 3167388036624. Its totient is φ = 301656003456.

The previous prime is 1131210013013. The next prime is 1131210013027. The reversal of 1131210013020 is 203100121311.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1131210013013) and next prime (1131210013027).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131210013027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9426750049 + ... + 9426750168.

It is an arithmetic number, because the mean of its divisors is an integer number (131974501526).

Almost surely, 2^{1131210013020} is an apocalyptic number.

1131210013020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131210013020 is an abundant number, since it is smaller than the sum of its proper divisors (2036178023604).

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

1131210013020 is a wasteful number, since it uses less digits than its factorization.

1131210013020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18853500229 (or 18853500227 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1131210013020 its reverse (203100121311), we get a palindrome (1334310134331).

The spelling of 1131210013020 in words is "one trillion, one hundred thirty-one billion, two hundred ten million, thirteen thousand, twenty".