231130233011501 has 2 divisors, whose sum is σ = 231130233011502. Its totient is φ = 231130233011500.

The previous prime is 231130233011477. The next prime is 231130233011519. The reversal of 231130233011501 is 105110332031132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200730778866601 + 30399454144900 = 14167949^2 + 5513570^2 .

It is a cyclic number.

It is not a de Polignac number, because 231130233011501 - 2¹⁰ = 231130233010477 is a prime.

It is a super-2 number, since 2×231130233011501² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231130233011591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115565116505750 + 115565116505751.

It is an arithmetic number, because the mean of its divisors is an integer number (115565116505751).

Almost surely, 2^{231130233011501} is an apocalyptic number.

It is an amenable number.

231130233011501 is a deficient number, since it is larger than the sum of its proper divisors (1).

231130233011501 is an equidigital number, since it uses as much as digits as its factorization.

231130233011501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 26.

Adding to 231130233011501 its reverse (105110332031132), we get a palindrome (336240565042633).

The spelling of 231130233011501 in words is "two hundred thirty-one trillion, one hundred thirty billion, two hundred thirty-three million, eleven thousand, five hundred one".