1242130021000 has 64 divisors (see below), whose sum is σ = 3170819208960. Its totient is φ = 451683640000.

The previous prime is 1242130020973. The next prime is 1242130021021. The reversal of 1242130021000 is 1200312421.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56449456 + ... + 56471455.

It is an arithmetic number, because the mean of its divisors is an integer number (49544050140).

Almost surely, 2^{1242130021000} is an apocalyptic number.

1242130021000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1242130021000 is an abundant number, since it is smaller than the sum of its proper divisors (1928689187960).

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

1242130021000 is a wasteful number, since it uses less digits than its factorization.

1242130021000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112920943 (or 112920929 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1242130021000 its reverse (1200312421), we get a palindrome (1243330333421).

The spelling of 1242130021000 in words is "one trillion, two hundred forty-two billion, one hundred thirty million, twenty-one thousand".