1231296973031 has 2 divisors, whose sum is σ = 1231296973032. Its totient is φ = 1231296973030.

The previous prime is 1231296973009. The next prime is 1231296973091. The reversal of 1231296973031 is 1303796921321.

It is a weak prime.

It is an emirp because it is prime and its reverse (1303796921321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1231296973031 - 2¹⁰ = 1231296972007 is a prime.

It is a super-2 number, since 2×1231296973031² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1231296973091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615648486515 + 615648486516.

It is an arithmetic number, because the mean of its divisors is an integer number (615648486516).

Almost surely, 2^{1231296973031} is an apocalyptic number.

1231296973031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231296973031 is an equidigital number, since it uses as much as digits as its factorization.

1231296973031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 367416, while the sum is 47.

The spelling of 1231296973031 in words is "one trillion, two hundred thirty-one billion, two hundred ninety-six million, nine hundred seventy-three thousand, thirty-one".