1451320321026 has 64 divisors (see below), whose sum is σ = 3086191756800. Its totient is φ = 453700786176.

The previous prime is 1451320320991. The next prime is 1451320321037. The reversal of 1451320321026 is 6201230231541.

It is a junction number, because it is equal to n+sod(n) for n = 1451320320984 and 1451320321002.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17144761 + ... + 17229203.

It is an arithmetic number, because the mean of its divisors is an integer number (48221746200).

Almost surely, 2^{1451320321026} is an apocalyptic number.

1451320321026 is an abundant number, since it is smaller than the sum of its proper divisors (1634871435774).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1451320321026 is a wasteful number, since it uses less digits than its factorization.

1451320321026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85983.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 1451320321026 its reverse (6201230231541), we get a palindrome (7652550552567).

The spelling of 1451320321026 in words is "one trillion, four hundred fifty-one billion, three hundred twenty million, three hundred twenty-one thousand, twenty-six".