203135252112123 has 16 divisors (see below), whose sum is σ = 279584505142272. Its totient is φ = 131054765940000.

The previous prime is 203135252112109. The next prime is 203135252112167. The reversal of 203135252112123 is 321211252531302.

It is not a de Polignac number, because 203135252112123 - 2¹² = 203135252108027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (203135252512123) 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, 60837513 + ... + 64089573.

It is an arithmetic number, because the mean of its divisors is an integer number (17474031571392).

Almost surely, 2^{203135252112123} is an apocalyptic number.

203135252112123 is a deficient number, since it is larger than the sum of its proper divisors (76449253030149).

203135252112123 is a wasteful number, since it uses less digits than its factorization.

203135252112123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3923746.

The product of its (nonzero) digits is 21600, while the sum is 33.

The spelling of 203135252112123 in words is "two hundred three trillion, one hundred thirty-five billion, two hundred fifty-two million, one hundred twelve thousand, one hundred twenty-three".