231337906903 has 2 divisors, whose sum is σ = 231337906904. Its totient is φ = 231337906902.

The previous prime is 231337906859. The next prime is 231337906949. The reversal of 231337906903 is 309609733132.

It is an a-pointer prime, because the next prime (231337906949) can be obtained adding 231337906903 to its sum of digits (46).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231337906903 - 2¹⁷ = 231337775831 is a prime.

It is a super-2 number, since 2×231337906903² (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 (231337906103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115668953451 + 115668953452.

It is an arithmetic number, because the mean of its divisors is an integer number (115668953452).

Almost surely, 2^231337906903 is an apocalyptic number.

231337906903 is a deficient number, since it is larger than the sum of its proper divisors (1).

231337906903 is an equidigital number, since it uses as much as digits as its factorization.

231337906903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 551124, while the sum is 46.

The spelling of 231337906903 in words is "two hundred thirty-one billion, three hundred thirty-seven million, nine hundred six thousand, nine hundred three".