1251102443132 has 12 divisors (see below), whose sum is σ = 2202539631600. Its totient is φ = 621805405536.

The previous prime is 1251102443119. The next prime is 1251102443147. The reversal of 1251102443132 is 2313442011521.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1251102443095 and 1251102443104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 936453257 + ... + 936454592.

It is an arithmetic number, because the mean of its divisors is an integer number (183544969300).

Almost surely, 2^{1251102443132} is an apocalyptic number.

It is an amenable number.

1251102443132 is a deficient number, since it is larger than the sum of its proper divisors (951437188468).

1251102443132 is a wasteful number, since it uses less digits than its factorization.

1251102443132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1872908020 (or 1872908018 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 1251102443132 its reverse (2313442011521), we get a palindrome (3564544454653).

The spelling of 1251102443132 in words is "one trillion, two hundred fifty-one billion, one hundred two million, four hundred forty-three thousand, one hundred thirty-two".