201031122130025 has 24 divisors (see below), whose sum is σ = 272351689203648. Its totient is φ = 145983265560000.

The previous prime is 201031122130009. The next prime is 201031122130039. The reversal of 201031122130025 is 520031221130102.

It is not a de Polignac number, because 201031122130025 - 2⁴ = 201031122130009 is a prime.

It is a Duffinian number.

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, 552785141 + ... + 553148690.

It is an arithmetic number, because the mean of its divisors is an integer number (11347987050152).

Almost surely, 2^{201031122130025} is an apocalyptic number.

201031122130025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

201031122130025 is a deficient number, since it is larger than the sum of its proper divisors (71320567073623).

201031122130025 is a wasteful number, since it uses less digits than its factorization.

201031122130025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105934513 (or 1105934508 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 201031122130025 its reverse (520031221130102), we get a palindrome (721062343260127).

The spelling of 201031122130025 in words is "two hundred one trillion, thirty-one billion, one hundred twenty-two million, one hundred thirty thousand, twenty-five".