12131961353 has 2 divisors, whose sum is σ = 12131961354. Its totient is φ = 12131961352.

The previous prime is 12131961319. The next prime is 12131961371. The reversal of 12131961353 is 35316913121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11423975689 + 707985664 = 106883^2 + 26608^2 .

It is a cyclic number.

It is not a de Polignac number, because 12131961353 - 2¹⁶ = 12131895817 is a prime.

It is not a weakly prime, because it can be changed into another prime (12131951353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6065980676 + 6065980677.

It is an arithmetic number, because the mean of its divisors is an integer number (6065980677).

Almost surely, 2^12131961353 is an apocalyptic number.

It is an amenable number.

12131961353 is a deficient number, since it is larger than the sum of its proper divisors (1).

12131961353 is an equidigital number, since it uses as much as digits as its factorization.

12131961353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14580, while the sum is 35.

The spelling of 12131961353 in words is "twelve billion, one hundred thirty-one million, nine hundred sixty-one thousand, three hundred fifty-three".