203010101023 has 4 divisors (see below), whose sum is σ = 206338135528. Its totient is φ = 199682066520.

The previous prime is 203010101009. The next prime is 203010101081. The reversal of 203010101023 is 320101010302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203010101023 is a prime.

It is a super-2 number, since 2×203010101023² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203010100994 and 203010101012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203010101123) 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, 1664017161 + ... + 1664017282.

It is an arithmetic number, because the mean of its divisors is an integer number (51584533882).

Almost surely, 2^203010101023 is an apocalyptic number.

203010101023 is a deficient number, since it is larger than the sum of its proper divisors (3328034505).

203010101023 is an equidigital number, since it uses as much as digits as its factorization.

203010101023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3328034504.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 203010101023 its reverse (320101010302), we get a palindrome (523111111325).

The spelling of 203010101023 in words is "two hundred three billion, ten million, one hundred one thousand, twenty-three".