203113120023220 has 24 divisors (see below), whose sum is σ = 465313693144608. Its totient is φ = 73859316372000.

The previous prime is 203113120023173. The next prime is 203113120023257. The reversal of 203113120023220 is 22320021311302.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 203113120023191 and 203113120023200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 461620727106 + ... + 461620727545.

It is an arithmetic number, because the mean of its divisors is an integer number (19388070547692).

Almost surely, 2^{203113120023220} is an apocalyptic number.

203113120023220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203113120023220 is an abundant number, since it is smaller than the sum of its proper divisors (262200573121388).

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

203113120023220 is a wasteful number, since it uses less digits than its factorization.

203113120023220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923241454671 (or 923241454669 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 203113120023220 its reverse (22320021311302), we get a palindrome (225433141334522).

The spelling of 203113120023220 in words is "two hundred three trillion, one hundred thirteen billion, one hundred twenty million, twenty-three thousand, two hundred twenty".