23021212040389 has 2 divisors, whose sum is σ = 23021212040390. Its totient is φ = 23021212040388.

The previous prime is 23021212040381. The next prime is 23021212040483. The reversal of 23021212040389 is 98304021212032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21654522447364 + 1366689593025 = 4653442^2 + 1169055^2 .

It is a cyclic number.

It is not a de Polignac number, because 23021212040389 - 2³ = 23021212040381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23021212040381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11510606020194 + 11510606020195.

It is an arithmetic number, because the mean of its divisors is an integer number (11510606020195).

Almost surely, 2^{23021212040389} is an apocalyptic number.

It is an amenable number.

23021212040389 is a deficient number, since it is larger than the sum of its proper divisors (1).

23021212040389 is an equidigital number, since it uses as much as digits as its factorization.

23021212040389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 37.

The spelling of 23021212040389 in words is "twenty-three trillion, twenty-one billion, two hundred twelve million, forty thousand, three hundred eighty-nine".