203022123023 has 4 divisors (see below), whose sum is σ = 203152853568. Its totient is φ = 202891392480.

The previous prime is 203022122999. The next prime is 203022123037. The reversal of 203022123023 is 320321220302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320321220302 = 2 ⋅160160610151.

It is a cyclic number.

It is not a de Polignac number, because 203022123023 - 2³² = 198727155727 is a prime.

It is a super-2 number, since 2×203022123023² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203022122986 and 203022123004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203022123823) 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, 65362943 + ... + 65366048.

It is an arithmetic number, because the mean of its divisors is an integer number (50788213392).

Almost surely, 2^203022123023 is an apocalyptic number.

203022123023 is a deficient number, since it is larger than the sum of its proper divisors (130730545).

203022123023 is a wasteful number, since it uses less digits than its factorization.

203022123023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130730544.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 203022123023 its reverse (320321220302), we get a palindrome (523343343325).

The spelling of 203022123023 in words is "two hundred three billion, twenty-two million, one hundred twenty-three thousand, twenty-three".