1319238317961 has 16 divisors (see below), whose sum is σ = 1976386996800. Its totient is φ = 869610275424.

The previous prime is 1319238317953. The next prime is 1319238317993. The reversal of 1319238317961 is 1697138329131.

1319238317961 is a `hidden beast` number, since 1 + 3 + 1 + 9 + 238 + 317 + 96 + 1 = 666.

It is not a de Polignac number, because 1319238317961 - 2³ = 1319238317953 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1319238317898 and 1319238317907.

It is not an unprimeable number, because it can be changed into a prime (1319238313961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 274495791 + ... + 274500596.

It is an arithmetic number, because the mean of its divisors is an integer number (123524187300).

Almost surely, 2^{1319238317961} is an apocalyptic number.

It is an amenable number.

1319238317961 is a deficient number, since it is larger than the sum of its proper divisors (657148678839).

1319238317961 is an equidigital number, since it uses as much as digits as its factorization.

1319238317961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548996485 (or 548996479 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 54.

The spelling of 1319238317961 in words is "one trillion, three hundred nineteen billion, two hundred thirty-eight million, three hundred seventeen thousand, nine hundred sixty-one".