201024688031 has 4 divisors (see below), whose sum is σ = 201025709064. Its totient is φ = 201023667000.

The previous prime is 201024688001. The next prime is 201024688043. The reversal of 201024688031 is 130886420102.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 130886420102 = 2 ⋅65443210051.

It is a cyclic number.

It is not a de Polignac number, because 201024688031 - 2¹⁰ = 201024687007 is a prime.

It is a super-2 number, since 2×201024688031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201024687982 and 201024688000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201024688001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110945 + ... + 643706.

It is an arithmetic number, because the mean of its divisors is an integer number (50256427266).

Almost surely, 2^201024688031 is an apocalyptic number.

201024688031 is a deficient number, since it is larger than the sum of its proper divisors (1021033).

201024688031 is an equidigital number, since it uses as much as digits as its factorization.

201024688031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021032.

The product of its (nonzero) digits is 18432, while the sum is 35.

The spelling of 201024688031 in words is "two hundred one billion, twenty-four million, six hundred eighty-eight thousand, thirty-one".