1251144050424 has 16 divisors (see below), whose sum is σ = 3127860126120. Its totient is φ = 417048016800.

The previous prime is 1251144050411. The next prime is 1251144050447. The reversal of 1251144050424 is 4240504411521.

It is a super-2 number, since 2×1251144050424² (a number of 25 digits) contains 22 as substring.

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, 26065501027 + ... + 26065501074.

Almost surely, 2^{1251144050424} is an apocalyptic number.

It is an amenable number.

1251144050424 is an abundant number, since it is smaller than the sum of its proper divisors (1876716075696).

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

1251144050424 is a wasteful number, since it uses less digits than its factorization.

1251144050424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52131002110 (or 52131002106 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 33.

Adding to 1251144050424 its reverse (4240504411521), we get a palindrome (5491648461945).

The spelling of 1251144050424 in words is "one trillion, two hundred fifty-one billion, one hundred forty-four million, fifty thousand, four hundred twenty-four".