233213220973 has 2 divisors, whose sum is σ = 233213220974. Its totient is φ = 233213220972.

The previous prime is 233213220959. The next prime is 233213221051. The reversal of 233213220973 is 379022312332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121381166404 + 111832054569 = 348398^2 + 334413^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-233213220973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (233213220943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116606610486 + 116606610487.

It is an arithmetic number, because the mean of its divisors is an integer number (116606610487).

Almost surely, 2^233213220973 is an apocalyptic number.

It is an amenable number.

233213220973 is a deficient number, since it is larger than the sum of its proper divisors (1).

233213220973 is an equidigital number, since it uses as much as digits as its factorization.

233213220973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 37.

The spelling of 233213220973 in words is "two hundred thirty-three billion, two hundred thirteen million, two hundred twenty thousand, nine hundred seventy-three".