23134220331389 has 2 divisors, whose sum is σ = 23134220331390. Its totient is φ = 23134220331388.

The previous prime is 23134220331359. The next prime is 23134220331427. The reversal of 23134220331389 is 98313302243132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18355440705625 + 4778779625764 = 4284325^2 + 2186042^2 .

It is a cyclic number.

It is not a de Polignac number, because 23134220331389 - 2¹² = 23134220327293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23134220331359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11567110165694 + 11567110165695.

It is an arithmetic number, because the mean of its divisors is an integer number (11567110165695).

Almost surely, 2^{23134220331389} is an apocalyptic number.

It is an amenable number.

23134220331389 is a deficient number, since it is larger than the sum of its proper divisors (1).

23134220331389 is an equidigital number, since it uses as much as digits as its factorization.

23134220331389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 559872, while the sum is 44.

The spelling of 23134220331389 in words is "twenty-three trillion, one hundred thirty-four billion, two hundred twenty million, three hundred thirty-one thousand, three hundred eighty-nine".