203120202310000 has 100 divisors (see below), whose sum is σ = 491989407518752. Its totient is φ = 81212545728000.

The previous prime is 203120202309943. The next prime is 203120202310037. The reversal of 203120202310000 is 13202021302.

It is a tau number, because it is divible by the number of its divisors (100).

It is a super-2 number, since 2×203120202310000² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 18429244 + ... + 27310756.

Almost surely, 2^{203120202310000} is an apocalyptic number.

203120202310000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203120202310000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245994703759376).

203120202310000 is an abundant number, since it is smaller than the sum of its proper divisors (288869205208752).

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

203120202310000 is an equidigital number, since it uses as much as digits as its factorization.

203120202310000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8883828 (or 8883807 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 203120202310000 its reverse (13202021302), we get a palindrome (203133404331302).

The spelling of 203120202310000 in words is "two hundred three trillion, one hundred twenty billion, two hundred two million, three hundred ten thousand".