102121432 has 32 divisors (see below), whose sum is σ = 219463200. Its totient is φ = 43640064.

The previous prime is 102121421. The next prime is 102121463. The reversal of 102121432 is 234121201.

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, 18444 + ... + 23332.

It is an arithmetic number, because the mean of its divisors is an integer number (6858225).

Almost surely, 2^102121432 is an apocalyptic number.

It is an amenable number.

102121432 is an abundant number, since it is smaller than the sum of its proper divisors (117341768).

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

102121432 is a wasteful number, since it uses less digits than its factorization.

102121432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5275 (or 5271 counting only the distinct ones).

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

The square root of 102121432 is about 10105.5149299776. The cubic root of 102121432 is about 467.4182144099.

Adding to 102121432 its reverse (234121201), we get a palindrome (336242633).

The spelling of 102121432 in words is "one hundred two million, one hundred twenty-one thousand, four hundred thirty-two".