1321425035501 has 16 divisors (see below), whose sum is σ = 1412799537600. Its totient is φ = 1232357056128.

The previous prime is 1321425035477. The next prime is 1321425035521. The reversal of 1321425035501 is 1055305241231.

It is a cyclic number.

It is not a de Polignac number, because 1321425035501 - 2²² = 1321420841197 is a prime.

It is a super-2 number, since 2×1321425035501² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321425035521) 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, 1337390 + ... + 2105103.

It is an arithmetic number, because the mean of its divisors is an integer number (88299971100).

Almost surely, 2^{1321425035501} is an apocalyptic number.

It is an amenable number.

1321425035501 is a deficient number, since it is larger than the sum of its proper divisors (91374502099).

1321425035501 is a wasteful number, since it uses less digits than its factorization.

1321425035501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3442828.

The product of its (nonzero) digits is 18000, while the sum is 32.

The spelling of 1321425035501 in words is "one trillion, three hundred twenty-one billion, four hundred twenty-five million, thirty-five thousand, five hundred one".