15250121132 has 24 divisors (see below), whose sum is σ = 27755972160. Its totient is φ = 7325061120.

The previous prime is 15250121113. The next prime is 15250121143. The reversal of 15250121132 is 23112105251.

It is a super-2 number, since 2×15250121132² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15250121098 and 15250121107.

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, 640469 + ... + 663852.

It is an arithmetic number, because the mean of its divisors is an integer number (1156498840).

Almost surely, 2^15250121132 is an apocalyptic number.

It is an amenable number.

15250121132 is a deficient number, since it is larger than the sum of its proper divisors (12505851028).

15250121132 is a wasteful number, since it uses less digits than its factorization.

15250121132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1304441 (or 1304439 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 23.

Adding to 15250121132 its reverse (23112105251), we get a palindrome (38362226383).

The spelling of 15250121132 in words is "fifteen billion, two hundred fifty million, one hundred twenty-one thousand, one hundred thirty-two".