230230431989 has 2 divisors, whose sum is σ = 230230431990. Its totient is φ = 230230431988.

The previous prime is 230230431931. The next prime is 230230432027. The reversal of 230230431989 is 989134032032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 225183466225 + 5046965764 = 474535^2 + 71042^2 .

It is a cyclic number.

It is not a de Polignac number, because 230230431989 - 2²⁰ = 230229383413 is a prime.

It is a super-2 number, since 2×230230431989² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230230434989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115115215994 + 115115215995.

It is an arithmetic number, because the mean of its divisors is an integer number (115115215995).

Almost surely, 2^230230431989 is an apocalyptic number.

It is an amenable number.

230230431989 is a deficient number, since it is larger than the sum of its proper divisors (1).

230230431989 is an equidigital number, since it uses as much as digits as its factorization.

230230431989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 44.

The spelling of 230230431989 in words is "two hundred thirty billion, two hundred thirty million, four hundred thirty-one thousand, nine hundred eighty-nine".