121424023100 has 36 divisors (see below), whose sum is σ = 263538080400. Its totient is φ = 48560770560.

The previous prime is 121424023093. The next prime is 121424023117. The reversal of 121424023100 is 1320424121.

It is a super-2 number, since 2×121424023100² (a number of 23 digits) contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 456236 + ... + 671564.

Almost surely, 2^121424023100 is an apocalyptic number.

121424023100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121424023100 is an abundant number, since it is smaller than the sum of its proper divisors (142114057300).

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

121424023100 is a wasteful number, since it uses less digits than its factorization.

121424023100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220982 (or 220975 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 121424023100 its reverse (1320424121), we get a palindrome (122744447221).

The spelling of 121424023100 in words is "one hundred twenty-one billion, four hundred twenty-four million, twenty-three thousand, one hundred".