121123002311300 has 144 divisors (see below), whose sum is σ = 303616396681920. Its totient is φ = 41451311616000.

The previous prime is 121123002311281. The next prime is 121123002311321. The reversal of 121123002311300 is 3113200321121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 317316560 + ... + 317698040.

It is an arithmetic number, because the mean of its divisors is an integer number (2108447199180).

Almost surely, 2^{121123002311300} is an apocalyptic number.

121123002311300 is a gapful number since it is divisible by the number (10) 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 121123002311300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151808198340960).

121123002311300 is an abundant number, since it is smaller than the sum of its proper divisors (182493394370620).

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

121123002311300 is a wasteful number, since it uses less digits than its factorization.

121123002311300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398502 (or 398495 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 121123002311300 its reverse (3113200321121), we get a palindrome (124236202632421).

The spelling of 121123002311300 in words is "one hundred twenty-one trillion, one hundred twenty-three billion, two million, three hundred eleven thousand, three hundred".