203130121110000 has 400 divisors, whose sum is σ = 749511961997568. Its totient is φ = 46423238400000.

The previous prime is 203130121109947. The next prime is 203130121110019. The reversal of 203130121110000 is 11121031302.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (400).

It is a super-2 number, since 2×203130121110000² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1587746035 + ... + 1587873965.

Almost surely, 2^{203130121110000} is an apocalyptic number.

203130121110000 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 203130121110000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (374755980998784).

203130121110000 is an abundant number, since it is smaller than the sum of its proper divisors (546381840887568).

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

203130121110000 is a wasteful number, since it uses less digits than its factorization.

203130121110000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135530 (or 135509 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 203130121110000 its reverse (11121031302), we get a palindrome (203141242141302).

The spelling of 203130121110000 in words is "two hundred three trillion, one hundred thirty billion, one hundred twenty-one million, one hundred ten thousand".