2031155023 has 2 divisors, whose sum is σ = 2031155024. Its totient is φ = 2031155022.

The previous prime is 2031154949. The next prime is 2031155029. The reversal of 2031155023 is 3205511302.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2031155023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2031154985 and 2031155003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2031155029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015577511 + 1015577512.

It is an arithmetic number, because the mean of its divisors is an integer number (1015577512).

Almost surely, 2^2031155023 is an apocalyptic number.

2031155023 is a deficient number, since it is larger than the sum of its proper divisors (1).

2031155023 is an equidigital number, since it uses as much as digits as its factorization.

2031155023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 2031155023 is about 45068.3372557719. The cubic root of 2031155023 is about 1266.4295156284.

Adding to 2031155023 its reverse (3205511302), we get a palindrome (5236666325).

The spelling of 2031155023 in words is "two billion, thirty-one million, one hundred fifty-five thousand, twenty-three".