200310121123 has 16 divisors (see below), whose sum is σ = 238894557696. Its totient is φ = 164218824000.

The previous prime is 200310121093. The next prime is 200310121133. The reversal of 200310121123 is 321121013002.

It is not a de Polignac number, because 200310121123 - 2⁹ = 200310120611 is a prime.

It is a super-2 number, since 2×200310121123² (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 = 200310121097 and 200310121106.

It is not an unprimeable number, because it can be changed into a prime (200310121133) 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, 3351540 + ... + 3410782.

It is an arithmetic number, because the mean of its divisors is an integer number (14930909856).

Almost surely, 2^200310121123 is an apocalyptic number.

200310121123 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

200310121123 is a deficient number, since it is larger than the sum of its proper divisors (38584436573).

200310121123 is a wasteful number, since it uses less digits than its factorization.

200310121123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80274.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 200310121123 its reverse (321121013002), we get a palindrome (521431134125).

The spelling of 200310121123 in words is "two hundred billion, three hundred ten million, one hundred twenty-one thousand, one hundred twenty-three".