256062102321 has 4 divisors (see below), whose sum is σ = 341416136432. Its totient is φ = 170708068212.

The previous prime is 256062102299. The next prime is 256062102349. The reversal of 256062102321 is 123201260652.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 256062102321 - 2³⁷ = 118623148849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (256062102521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42677017051 + ... + 42677017056.

It is an arithmetic number, because the mean of its divisors is an integer number (85354034108).

Almost surely, 2^256062102321 is an apocalyptic number.

It is an amenable number.

256062102321 is a deficient number, since it is larger than the sum of its proper divisors (85354034111).

256062102321 is an equidigital number, since it uses as much as digits as its factorization.

256062102321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85354034110.

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

Adding to 256062102321 its reverse (123201260652), we get a palindrome (379263362973).

The spelling of 256062102321 in words is "two hundred fifty-six billion, sixty-two million, one hundred two thousand, three hundred twenty-one".