203111034100023 has 32 divisors (see below), whose sum is σ = 325793121763840. Its totient is φ = 109954512460800.

The previous prime is 203111034099973. The next prime is 203111034100067. The reversal of 203111034100023 is 320001430111302.

It is not a de Polignac number, because 203111034100023 - 2²⁰ = 203111033051447 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203111034102023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 190510011 + ... + 191573187.

It is an arithmetic number, because the mean of its divisors is an integer number (10181035055120).

Almost surely, 2^{203111034100023} is an apocalyptic number.

203111034100023 is a deficient number, since it is larger than the sum of its proper divisors (122682087663817).

203111034100023 is a wasteful number, since it uses less digits than its factorization.

203111034100023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1542007.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 203111034100023 its reverse (320001430111302), we get a palindrome (523112464211325).

The spelling of 203111034100023 in words is "two hundred three trillion, one hundred eleven billion, thirty-four million, one hundred thousand, twenty-three".