13531201025 has 24 divisors (see below), whose sum is σ = 17673943200. Its totient is φ = 10248163200.

The previous prime is 13531200997. The next prime is 13531201043. The reversal of 13531201025 is 52010213531.

It is a happy number.

It is not a de Polignac number, because 13531201025 - 2⁶ = 13531200961 is a prime.

It is a super-2 number, since 2×13531201025² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 741005 + ... + 759045.

It is an arithmetic number, because the mean of its divisors is an integer number (736414300).

Almost surely, 2^13531201025 is an apocalyptic number.

It is an amenable number.

13531201025 is a deficient number, since it is larger than the sum of its proper divisors (4142742175).

13531201025 is a wasteful number, since it uses less digits than its factorization.

13531201025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19649 (or 19644 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

Adding to 13531201025 its reverse (52010213531), we get a palindrome (65541414556).

The spelling of 13531201025 in words is "thirteen billion, five hundred thirty-one million, two hundred one thousand, twenty-five".