1011020113120 has 48 divisors (see below), whose sum is σ = 2529037083888. Its totient is φ = 380619335680.

The previous prime is 1011020113093. The next prime is 1011020113183. The reversal of 1011020113120 is 213110201101.

It is a happy number.

It is a super-2 number, since 2×1011020113120² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1011020113120.

It is a congruent number.

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, 185846566 + ... + 185852005.

It is an arithmetic number, because the mean of its divisors is an integer number (52688272581).

Almost surely, 2^{1011020113120} is an apocalyptic number.

1011020113120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011020113120 is an abundant number, since it is smaller than the sum of its proper divisors (1518016970768).

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

1011020113120 is a wasteful number, since it uses less digits than its factorization.

1011020113120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371698603 (or 371698595 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 1011020113120 its reverse (213110201101), we get a palindrome (1224130314221).

The spelling of 1011020113120 in words is "one trillion, eleven billion, twenty million, one hundred thirteen thousand, one hundred twenty".