203311131102030 has 128 divisors (see below), whose sum is σ = 573264922060800. Its totient is φ = 45172522160640.

The previous prime is 203311131102017. The next prime is 203311131102061. The reversal of 203311131102030 is 30201131113302.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 203311131101988 and 203311131102006.

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, 4086930 + ... + 20574869.

It is an arithmetic number, because the mean of its divisors is an integer number (4478632203600).

Almost surely, 2^{203311131102030} is an apocalyptic number.

203311131102030 is an abundant number, since it is smaller than the sum of its proper divisors (369953790958770).

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

203311131102030 is a wasteful number, since it uses less digits than its factorization.

203311131102030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24662914.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 203311131102030 its reverse (30201131113302), we get a palindrome (233512262215332).

The spelling of 203311131102030 in words is "two hundred three trillion, three hundred eleven billion, one hundred thirty-one million, one hundred two thousand, thirty".