201031120023 has 16 divisors (see below), whose sum is σ = 278736076800. Its totient is φ = 128721847520.

The previous prime is 201031120013. The next prime is 201031120033. The reversal of 201031120023 is 320021130102.

It is an interprime number because it is at equal distance from previous prime (201031120013) and next prime (201031120033).

It is a cyclic number.

It is not a de Polignac number, because 201031120023 - 2⁸ = 201031119767 is a prime.

It is a super-2 number, since 2×201031120023² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201031119984 and 201031120011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201031120013) 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, 6032343 + ... + 6065576.

It is an arithmetic number, because the mean of its divisors is an integer number (17421004800).

Almost surely, 2^201031120023 is an apocalyptic number.

201031120023 is a deficient number, since it is larger than the sum of its proper divisors (77704956777).

201031120023 is a wasteful number, since it uses less digits than its factorization.

201031120023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12098142.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 201031120023 its reverse (320021130102), we get a palindrome (521052250125).

The spelling of 201031120023 in words is "two hundred one billion, thirty-one million, one hundred twenty thousand, twenty-three".