1342495312921 has 9 divisors (see below), whose sum is σ = 1561687656021. Its totient is φ = 1150703316252.

The previous prime is 1342495312889. The next prime is 1342495312943. The reversal of 1342495312921 is 1292135942431.

The square root of 1342495312921 is 1158661.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 1342495312921 - 2⁵ = 1342495312889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1342495312621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8027866 + ... + 8193388.

It is an arithmetic number, because the mean of its divisors is an integer number (173520850669).

Almost surely, 2^{1342495312921} is an apocalyptic number.

1342495312921 is the 1158661-st square number.

1342495312921 is the 579331-st centered octagonal number.

It is an amenable number.

1342495312921 is a deficient number, since it is larger than the sum of its proper divisors (219192343100).

1342495312921 is an frugal number, since it uses more digits than its factorization.

1342495312921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331060 (or 165530 counting only the distinct ones).

The product of its digits is 466560, while the sum is 46.

The spelling of 1342495312921 in words is "one trillion, three hundred forty-two billion, four hundred ninety-five million, three hundred twelve thousand, nine hundred twenty-one".