124202153421 has 48 divisors (see below), whose sum is σ = 193034814336. Its totient is φ = 76770215808.

The previous prime is 124202153407. The next prime is 124202153447. The reversal of 124202153421 is 124351202421.

124202153421 is a `hidden beast` number, since 1 + 2 + 4 + 20 + 215 + 3 + 421 = 666.

It is not a de Polignac number, because 124202153421 - 2¹⁹ = 124201629133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124202153461) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 842395 + ... + 978791.

It is an arithmetic number, because the mean of its divisors is an integer number (4021558632).

Almost surely, 2^124202153421 is an apocalyptic number.

It is an amenable number.

124202153421 is a deficient number, since it is larger than the sum of its proper divisors (68832660915).

124202153421 is a wasteful number, since it uses less digits than its factorization.

124202153421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136562 (or 136559 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 124202153421 its reverse (124351202421), we get a palindrome (248553355842).

The spelling of 124202153421 in words is "one hundred twenty-four billion, two hundred two million, one hundred fifty-three thousand, four hundred twenty-one".