115243031 has 2 divisors, whose sum is σ = 115243032. Its totient is φ = 115243030.

The previous prime is 115243003. The next prime is 115243033. The reversal of 115243031 is 130342511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 115243031 - 2²⁶ = 48134167 is a prime.

It is a super-2 number, since 2×115243031² = 26561912388133922, which contains 22 as substring.

Together with 115243033, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 115242994 and 115243012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115243033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57621515 + 57621516.

It is an arithmetic number, because the mean of its divisors is an integer number (57621516).

Almost surely, 2^115243031 is an apocalyptic number.

115243031 is a deficient number, since it is larger than the sum of its proper divisors (1).

115243031 is an equidigital number, since it uses as much as digits as its factorization.

115243031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 115243031 is about 10735.1306931961. The cubic root of 115243031 is about 486.6367361860.

Adding to 115243031 its reverse (130342511), we get a palindrome (245585542).

The spelling of 115243031 in words is "one hundred fifteen million, two hundred forty-three thousand, thirty-one".