1251313011401 has 8 divisors (see below), whose sum is σ = 1274476939104. Its totient is φ = 1228281072480.

The previous prime is 1251313011343. The next prime is 1251313011419. The reversal of 1251313011401 is 1041103131521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1251313011401 - 2¹⁰ = 1251313010377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1251313011491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32978060 + ... + 33015981.

It is an arithmetic number, because the mean of its divisors is an integer number (159309617388).

Almost surely, 2^{1251313011401} is an apocalyptic number.

It is an amenable number.

1251313011401 is a deficient number, since it is larger than the sum of its proper divisors (23163927703).

1251313011401 is an equidigital number, since it uses as much as digits as its factorization.

1251313011401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65994391.

The product of its (nonzero) digits is 360, while the sum is 23.

Adding to 1251313011401 its reverse (1041103131521), we get a palindrome (2292416142922).

The spelling of 1251313011401 in words is "one trillion, two hundred fifty-one billion, three hundred thirteen million, eleven thousand, four hundred one".