1011040032100 has 72 divisors (see below), whose sum is σ = 2507515133760. Its totient is φ = 346623515520.

The previous prime is 1011040032097. The next prime is 1011040032103. The reversal of 1011040032100 is 12300401101.

It is an interprime number because it is at equal distance from previous prime (1011040032097) and next prime (1011040032103).

It is not an unprimeable number, because it can be changed into a prime (1011040032103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20849082 + ... + 20897518.

It is an arithmetic number, because the mean of its divisors is an integer number (34826599080).

Almost surely, 2^{1011040032100} is an apocalyptic number.

1011040032100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011040032100 is an abundant number, since it is smaller than the sum of its proper divisors (1496475101660).

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

1011040032100 is a wasteful number, since it uses less digits than its factorization.

1011040032100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78277 (or 78270 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 1011040032100 its reverse (12300401101), we get a palindrome (1023340433201).

The spelling of 1011040032100 in words is "one trillion, eleven billion, forty million, thirty-two thousand, one hundred".