203112032120431 has 4 divisors (see below), whose sum is σ = 232128036709072. Its totient is φ = 174096027531792.

The previous prime is 203112032120383. The next prime is 203112032120441. The reversal of 203112032120431 is 134021230211302.

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 203112032120431 - 2²³ = 203112023731823 is a prime.

It is a super-2 number, since 2×203112032120431² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 203112032120396 and 203112032120405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203112032120441) 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, 14508002294310 + ... + 14508002294323.

It is an arithmetic number, because the mean of its divisors is an integer number (58032009177268).

Almost surely, 2^{203112032120431} is an apocalyptic number.

203112032120431 is a deficient number, since it is larger than the sum of its proper divisors (29016004588641).

203112032120431 is an equidigital number, since it uses as much as digits as its factorization.

203112032120431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29016004588640.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 203112032120431 its reverse (134021230211302), we get a palindrome (337133262331733).

The spelling of 203112032120431 in words is "two hundred three trillion, one hundred twelve billion, thirty-two million, one hundred twenty thousand, four hundred thirty-one".