1321097950395 has 24 divisors (see below), whose sum is σ = 2290014417600. Its totient is φ = 704551326336.

The previous prime is 1321097950357. The next prime is 1321097950411. The reversal of 1321097950395 is 5930597901231.

1321097950395 is a `hidden beast` number, since 1 + 32 + 10 + 9 + 7 + 9 + 503 + 95 = 666.

It is not a de Polignac number, because 1321097950395 - 2¹⁴ = 1321097934011 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 236511 + ... + 1642599.

It is an arithmetic number, because the mean of its divisors is an integer number (95417267400).

Almost surely, 2^{1321097950395} is an apocalyptic number.

1321097950395 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1321097950395 is a deficient number, since it is larger than the sum of its proper divisors (968916467205).

1321097950395 is a wasteful number, since it uses less digits than its factorization.

1321097950395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426979 (or 1426976 counting only the distinct ones).

The product of its (nonzero) digits is 2296350, while the sum is 54.

The spelling of 1321097950395 in words is "one trillion, three hundred twenty-one billion, ninety-seven million, nine hundred fifty thousand, three hundred ninety-five".