320422802981 has 4 divisors (see below), whose sum is σ = 330759022464. Its totient is φ = 310086583500.

The previous prime is 320422802963. The next prime is 320422802983. The reversal of 320422802981 is 189208224023.

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 a cyclic number.

It is not a de Polignac number, because 320422802981 - 2¹⁰ = 320422801957 is a prime.

It is a super-2 number, since 2×320422802981² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320422802983) 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, 5168109695 + ... + 5168109756.

It is an arithmetic number, because the mean of its divisors is an integer number (82689755616).

Almost surely, 2^320422802981 is an apocalyptic number.

320422802981 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

320422802981 is a deficient number, since it is larger than the sum of its proper divisors (10336219483).

320422802981 is a wasteful number, since it uses less digits than its factorization.

320422802981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10336219482.

The product of its (nonzero) digits is 110592, while the sum is 41.

The spelling of 320422802981 in words is "three hundred twenty billion, four hundred twenty-two million, eight hundred two thousand, nine hundred eighty-one".