1172938331 has 2 divisors, whose sum is σ = 1172938332. Its totient is φ = 1172938330.

The previous prime is 1172938309. The next prime is 1172938363. The reversal of 1172938331 is 1338392711.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1172938331 is a prime.

It is a super-2 number, since 2×1172938331² = 2751568656658131122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1172998331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 586469165 + 586469166.

It is an arithmetic number, because the mean of its divisors is an integer number (586469166).

Almost surely, 2^1172938331 is an apocalyptic number.

1172938331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1172938331 is an equidigital number, since it uses as much as digits as its factorization.

1172938331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 38.

The square root of 1172938331 is about 34248.1872658977. The cubic root of 1172938331 is about 1054.6096145522.

The spelling of 1172938331 in words is "one billion, one hundred seventy-two million, nine hundred thirty-eight thousand, three hundred thirty-one".