1301232131 has 2 divisors, whose sum is σ = 1301232132. Its totient is φ = 1301232130.

The previous prime is 1301232091. The next prime is 1301232137. The reversal of 1301232131 is 1312321031.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1301232131 is a prime.

It is a super-2 number, since 2×1301232131² = 3386410117493602322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1301232137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650616065 + 650616066.

It is an arithmetic number, because the mean of its divisors is an integer number (650616066).

Almost surely, 2^1301232131 is an apocalyptic number.

1301232131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1301232131 is an equidigital number, since it uses as much as digits as its factorization.

1301232131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1301232131 is about 36072.5952906081. The cubic root of 1301232131 is about 1091.7375790568.

Adding to 1301232131 its reverse (1312321031), we get a palindrome (2613553162).

Subtracting 1301232131 from its reverse (1312321031), we obtain a square (11088900 = 3330²).

The spelling of 1301232131 in words is "one billion, three hundred one million, two hundred thirty-two thousand, one hundred thirty-one".