1251421014032 has 30 divisors (see below), whose sum is σ = 2820485884158. Its totient is φ = 536323291392.

The previous prime is 1251421014029. The next prime is 1251421014089. The reversal of 1251421014032 is 2304101241521.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1082190800656 + 169230213376 = 1040284^2 + 411376^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1251421013992 and 1251421014010.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 798099353 + ... + 798100920.

Almost surely, 2^{1251421014032} is an apocalyptic number.

It is an amenable number.

1251421014032 is an abundant number, since it is smaller than the sum of its proper divisors (1569064870126).

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

1251421014032 is a wasteful number, since it uses less digits than its factorization.

1251421014032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1596200295 (or 1596200282 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 1251421014032 its reverse (2304101241521), we get a palindrome (3555522255553).

The spelling of 1251421014032 in words is "one trillion, two hundred fifty-one billion, four hundred twenty-one million, fourteen thousand, thirty-two".