2100155244231 has 12 divisors (see below), whose sum is σ = 3077913471416. Its totient is φ = 1272821359920.

The previous prime is 2100155244221. The next prime is 2100155244263. The reversal of 2100155244231 is 1324425510012.

It is not a de Polignac number, because 2100155244231 - 2⁶ = 2100155244167 is a prime.

It is a super-2 number, since 2×2100155244231² (a number of 25 digits) contains 22 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 (2100155244221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2892775456 + ... + 2892776181.

Almost surely, 2^{2100155244231} is an apocalyptic number.

2100155244231 is a deficient number, since it is larger than the sum of its proper divisors (977758227185).

2100155244231 is a wasteful number, since it uses less digits than its factorization.

2100155244231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5785551662 (or 5785551651 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The spelling of 2100155244231 in words is "two trillion, one hundred billion, one hundred fifty-five million, two hundred forty-four thousand, two hundred thirty-one".