203420002342031 has 4 divisors (see below), whose sum is σ = 203437115166432. Its totient is φ = 203402889517632.

The previous prime is 203420002342021. The next prime is 203420002342043. The reversal of 203420002342031 is 130243200024302.

203420002342031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 203420002342031 - 2³⁴ = 203402822472847 is a prime.

It is a super-2 number, since 2×203420002342031² (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 (203420002342021) 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, 8556394370 + ... + 8556418143.

It is an arithmetic number, because the mean of its divisors is an integer number (50859278791608).

Almost surely, 2^{203420002342031} is an apocalyptic number.

203420002342031 is a deficient number, since it is larger than the sum of its proper divisors (17112824401).

203420002342031 is a wasteful number, since it uses less digits than its factorization.

203420002342031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17112824400.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 203420002342031 its reverse (130243200024302), we get a palindrome (333663202366333).

The spelling of 203420002342031 in words is "two hundred three trillion, four hundred twenty billion, two million, three hundred forty-two thousand, thirty-one".