1235042555100 has 72 divisors (see below), whose sum is σ = 3573511280640. Its totient is φ = 329333484480.

The previous prime is 1235042554957. The next prime is 1235042555137. The reversal of 1235042555100 is 15552405321.

It is a super-2 number, since 2×1235042555100² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12563941 + ... + 12661859.

It is an arithmetic number, because the mean of its divisors is an integer number (49632101120).

Almost surely, 2^{1235042555100} is an apocalyptic number.

1235042555100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1235042555100 is an abundant number, since it is smaller than the sum of its proper divisors (2338468725540).

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

1235042555100 is a wasteful number, since it uses less digits than its factorization.

1235042555100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139979 (or 139972 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 33.

The spelling of 1235042555100 in words is "one trillion, two hundred thirty-five billion, forty-two million, five hundred fifty-five thousand, one hundred".