25321036201121 has 16 divisors (see below), whose sum is σ = 28629686960640. Its totient is φ = 22267534275840.

The previous prime is 25321036201079. The next prime is 25321036201159. The reversal of 25321036201121 is 12110263012352.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25321036201121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25321036201421) 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, 828390011 + ... + 828420576.

It is an arithmetic number, because the mean of its divisors is an integer number (1789355435040).

Almost surely, 2^{25321036201121} is an apocalyptic number.

It is an amenable number.

25321036201121 is a deficient number, since it is larger than the sum of its proper divisors (3308650759519).

25321036201121 is a wasteful number, since it uses less digits than its factorization.

25321036201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1656810664.

The product of its (nonzero) digits is 4320, while the sum is 29.

Adding to 25321036201121 its reverse (12110263012352), we get a palindrome (37431299213473).

The spelling of 25321036201121 in words is "twenty-five trillion, three hundred twenty-one billion, thirty-six million, two hundred one thousand, one hundred twenty-one".