213101403122025 has 72 divisors (see below), whose sum is σ = 431808975727584. Its totient is φ = 103321892390400.

The previous prime is 213101403122021. The next prime is 213101403122033. The reversal of 213101403122025 is 520221304101312.

It is a happy number.

213101403122025 is a `hidden beast` number, since 2 + 1 + 3 + 1 + 0 + 140 + 312 + 202 + 5 = 666.

It is not a de Polignac number, because 213101403122025 - 2² = 213101403122021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 213101403122025.

It is not an unprimeable number, because it can be changed into a prime (213101403122021) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1594406824 + ... + 1594540473.

Almost surely, 2^{213101403122025} is an apocalyptic number.

213101403122025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

213101403122025 is an abundant number, since it is smaller than the sum of its proper divisors (218707572605559).

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

213101403122025 is a wasteful number, since it uses less digits than its factorization.

213101403122025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3188947333 (or 3188947316 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 213101403122025 its reverse (520221304101312), we get a palindrome (733322707223337).

The spelling of 213101403122025 in words is "two hundred thirteen trillion, one hundred one billion, four hundred three million, one hundred twenty-two thousand, twenty-five".