203122313113031 has 16 divisors (see below), whose sum is σ = 220350143047104. Its totient is φ = 186123567201024.

The previous prime is 203122313113021. The next prime is 203122313113061. The reversal of 203122313113031 is 130311313221302.

It is a cyclic number.

It is not a de Polignac number, because 203122313113031 - 2⁶ = 203122313112967 is a prime.

It is a super-2 number, since 2×203122313113031² (a number of 29 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 (203122313113021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60919526 + ... + 64167228.

It is an arithmetic number, because the mean of its divisors is an integer number (13771883940444).

Almost surely, 2^{203122313113031} is an apocalyptic number.

203122313113031 is a deficient number, since it is larger than the sum of its proper divisors (17227829934073).

203122313113031 is a wasteful number, since it uses less digits than its factorization.

203122313113031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3282970.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 203122313113031 its reverse (130311313221302), we get a palindrome (333433626334333).

The spelling of 203122313113031 in words is "two hundred three trillion, one hundred twenty-two billion, three hundred thirteen million, one hundred thirteen thousand, thirty-one".