102021301231040 has 56 divisors (see below), whose sum is σ = 243265193468640. Its totient is φ = 40753596412928.

The previous prime is 102021301231039. The next prime is 102021301231063. The reversal of 102021301231040 is 40132103120201.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 214309055 + ... + 214784574.

It is an arithmetic number, because the mean of its divisors is an integer number (4344021311940).

Almost surely, 2^{102021301231040} is an apocalyptic number.

102021301231040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102021301231040 is an abundant number, since it is smaller than the sum of its proper divisors (141243892237600).

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

102021301231040 is an equidigital number, since it uses as much as digits as its factorization.

102021301231040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429094389 (or 429094379 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 102021301231040 its reverse (40132103120201), we get a palindrome (142153404351241).

The spelling of 102021301231040 in words is "one hundred two trillion, twenty-one billion, three hundred one million, two hundred thirty-one thousand, forty".