11997025401 has 16 divisors (see below), whose sum is σ = 16170912000. Its totient is φ = 7911028608.

The previous prime is 11997025393. The next prime is 11997025421. The reversal of 11997025401 is 10452079911.

It is not a de Polignac number, because 11997025401 - 2³ = 11997025393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11997025401.

It is not an unprimeable number, because it can be changed into a prime (11997025421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50685 + ... + 162981.

It is an arithmetic number, because the mean of its divisors is an integer number (1010682000).

Almost surely, 2^11997025401 is an apocalyptic number.

It is an amenable number.

11997025401 is a deficient number, since it is larger than the sum of its proper divisors (4173886599).

11997025401 is a wasteful number, since it uses less digits than its factorization.

11997025401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112688.

The product of its (nonzero) digits is 22680, while the sum is 39.

The spelling of 11997025401 in words is "eleven billion, nine hundred ninety-seven million, twenty-five thousand, four hundred one".