231151202303 has 4 divisors (see below), whose sum is σ = 264172802640. Its totient is φ = 198129601968.

The previous prime is 231151202273. The next prime is 231151202309. The reversal of 231151202303 is 303202151132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 231151202303 - 2¹² = 231151198207 is a prime.

It is a super-2 number, since 2×231151202303² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231151202309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16510800158 + ... + 16510800171.

It is an arithmetic number, because the mean of its divisors is an integer number (66043200660).

Almost surely, 2^231151202303 is an apocalyptic number.

231151202303 is a deficient number, since it is larger than the sum of its proper divisors (33021600337).

231151202303 is an equidigital number, since it uses as much as digits as its factorization.

231151202303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33021600336.

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 231151202303 its reverse (303202151132), we get a palindrome (534353353435).

The spelling of 231151202303 in words is "two hundred thirty-one billion, one hundred fifty-one million, two hundred two thousand, three hundred three".