203312112023 has 4 divisors (see below), whose sum is σ = 206645097528. Its totient is φ = 199979126520.

The previous prime is 203312112019. The next prime is 203312112053. The reversal of 203312112023 is 320211213302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320211213302 = 2 ⋅160105606651.

It is a cyclic number.

It is not a de Polignac number, because 203312112023 - 2² = 203312112019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203312111986 and 203312112004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203312112053) 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, 1666492661 + ... + 1666492782.

It is an arithmetic number, because the mean of its divisors is an integer number (51661274382).

Almost surely, 2^203312112023 is an apocalyptic number.

203312112023 is a deficient number, since it is larger than the sum of its proper divisors (3332985505).

203312112023 is an equidigital number, since it uses as much as digits as its factorization.

203312112023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3332985504.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 203312112023 its reverse (320211213302), we get a palindrome (523523325325).

The spelling of 203312112023 in words is "two hundred three billion, three hundred twelve million, one hundred twelve thousand, twenty-three".