423230131157 has 2 divisors, whose sum is σ = 423230131158. Its totient is φ = 423230131156.

The previous prime is 423230131153. The next prime is 423230131231. The reversal of 423230131157 is 751131032324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 288835304356 + 134394826801 = 537434^2 + 366599^2 .

It is a cyclic number.

It is not a de Polignac number, because 423230131157 - 2² = 423230131153 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423230131153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211615065578 + 211615065579.

It is an arithmetic number, because the mean of its divisors is an integer number (211615065579).

Almost surely, 2^423230131157 is an apocalyptic number.

It is an amenable number.

423230131157 is a deficient number, since it is larger than the sum of its proper divisors (1).

423230131157 is an equidigital number, since it uses as much as digits as its factorization.

423230131157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 32.

The spelling of 423230131157 in words is "four hundred twenty-three billion, two hundred thirty million, one hundred thirty-one thousand, one hundred fifty-seven".