1392660420331 has 4 divisors (see below), whose sum is σ = 1422291493152. Its totient is φ = 1363029347512.

The previous prime is 1392660420323. The next prime is 1392660420353. The reversal of 1392660420331 is 1330240662931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1392660420331 - 2³ = 1392660420323 is a prime.

It is a super-2 number, since 2×1392660420331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1392660420031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14815536340 + ... + 14815536433.

It is an arithmetic number, because the mean of its divisors is an integer number (355572873288).

Almost surely, 2^{1392660420331} is an apocalyptic number.

1392660420331 is a deficient number, since it is larger than the sum of its proper divisors (29631072821).

1392660420331 is an equidigital number, since it uses as much as digits as its factorization.

1392660420331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29631072820.

The product of its (nonzero) digits is 139968, while the sum is 40.

The spelling of 1392660420331 in words is "one trillion, three hundred ninety-two billion, six hundred sixty million, four hundred twenty thousand, three hundred thirty-one".