231535011512101 has 16 divisors (see below), whose sum is σ = 271534493813760. Its totient is φ = 195165417412080.

The previous prime is 231535011512023. The next prime is 231535011512261. The reversal of 231535011512101 is 101215110535132.

231535011512101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 231535011512101 - 2¹⁷ = 231535011381029 is a prime.

It is a super-3 number, since 3×231535011512101³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231535011512501) 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, 11785341471 + ... + 11785361116.

It is an arithmetic number, because the mean of its divisors is an integer number (16970905863360).

Almost surely, 2^{231535011512101} is an apocalyptic number.

It is an amenable number.

231535011512101 is a deficient number, since it is larger than the sum of its proper divisors (39999482301659).

231535011512101 is a wasteful number, since it uses less digits than its factorization.

231535011512101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23570702664.

The product of its (nonzero) digits is 4500, while the sum is 31.

The spelling of 231535011512101 in words is "two hundred thirty-one trillion, five hundred thirty-five billion, eleven million, five hundred twelve thousand, one hundred one".