23154131203 has 4 divisors (see below), whose sum is σ = 26461864240. Its totient is φ = 19846398168.

The previous prime is 23154131197. The next prime is 23154131207. The reversal of 23154131203 is 30213145132.

It is a happy number.

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 23154131203 - 2⁵ = 23154131171 is a prime.

It is a super-2 number, since 2×23154131203² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23154131207) 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, 1653866508 + ... + 1653866521.

It is an arithmetic number, because the mean of its divisors is an integer number (6615466060).

Almost surely, 2^23154131203 is an apocalyptic number.

23154131203 is a deficient number, since it is larger than the sum of its proper divisors (3307733037).

23154131203 is an equidigital number, since it uses as much as digits as its factorization.

23154131203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3307733036.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 23154131203 its reverse (30213145132), we get a palindrome (53367276335).

The spelling of 23154131203 in words is "twenty-three billion, one hundred fifty-four million, one hundred thirty-one thousand, two hundred three".