203123442144031 has 2 divisors, whose sum is σ = 203123442144032. Its totient is φ = 203123442144030.

The previous prime is 203123442144019. The next prime is 203123442144061. The reversal of 203123442144031 is 130441244321302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 203123442144031 - 2³⁵ = 203089082405663 is a prime.

It is a super-2 number, since 2×203123442144031² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203123442144061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101561721072015 + 101561721072016.

It is an arithmetic number, because the mean of its divisors is an integer number (101561721072016).

Almost surely, 2^{203123442144031} is an apocalyptic number.

203123442144031 is a deficient number, since it is larger than the sum of its proper divisors (1).

203123442144031 is an equidigital number, since it uses as much as digits as its factorization.

203123442144031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55296, while the sum is 34.

Adding to 203123442144031 its reverse (130441244321302), we get a palindrome (333564686465333).

The spelling of 203123442144031 in words is "two hundred three trillion, one hundred twenty-three billion, four hundred forty-two million, one hundred forty-four thousand, thirty-one".