1321423411025 has 24 divisors (see below), whose sum is σ = 1652876694240. Its totient is φ = 1047944125440.

The previous prime is 1321423411003. The next prime is 1321423411037. The reversal of 1321423411025 is 5201143241231.

It is a happy number.

It is not a de Polignac number, because 1321423411025 - 2²⁴ = 1321406633809 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, 881606 + ... + 1849344.

It is an arithmetic number, because the mean of its divisors is an integer number (68869862260).

Almost surely, 2^{1321423411025} is an apocalyptic number.

It is an amenable number.

1321423411025 is a deficient number, since it is larger than the sum of its proper divisors (331453283215).

1321423411025 is a wasteful number, since it uses less digits than its factorization.

1321423411025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968225 (or 968220 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 1321423411025 its reverse (5201143241231), we get a palindrome (6522566652256).

The spelling of 1321423411025 in words is "one trillion, three hundred twenty-one billion, four hundred twenty-three million, four hundred eleven thousand, twenty-five".