121400450052 has 48 divisors (see below), whose sum is σ = 323821317120. Its totient is φ = 34676544672.

The previous prime is 121400450047. The next prime is 121400450063. The reversal of 121400450052 is 250054004121.

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, 124599 + ... + 508257.

It is an arithmetic number, because the mean of its divisors is an integer number (6746277440).

Almost surely, 2^121400450052 is an apocalyptic number.

121400450052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121400450052 is an abundant number, since it is smaller than the sum of its proper divisors (202420867068).

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

121400450052 is a wasteful number, since it uses less digits than its factorization.

121400450052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387440 (or 387438 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

Adding to 121400450052 its reverse (250054004121), we get a palindrome (371454454173).

The spelling of 121400450052 in words is "one hundred twenty-one billion, four hundred million, four hundred fifty thousand, fifty-two".