202015123030 has 128 divisors (see below), whose sum is σ = 434012774400. Its totient is φ = 66256413696.

The previous prime is 202015123003. The next prime is 202015123091. The reversal of 202015123030 is 30321510202.

It is a junction number, because it is equal to n+sod(n) for n = 202015122989 and 202015123007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 140385051 + ... + 140386489.

It is an arithmetic number, because the mean of its divisors is an integer number (3390724800).

Almost surely, 2^202015123030 is an apocalyptic number.

202015123030 is an abundant number, since it is smaller than the sum of its proper divisors (231997651370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202015123030 is a wasteful number, since it uses less digits than its factorization.

202015123030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2366.

The product of its (nonzero) digits is 360, while the sum is 19.

Adding to 202015123030 its reverse (30321510202), we get a palindrome (232336633232).

The spelling of 202015123030 in words is "two hundred two billion, fifteen million, one hundred twenty-three thousand, thirty".