121000311320 has 64 divisors (see below), whose sum is σ = 311405325120. Its totient is φ = 41450932224.

The previous prime is 121000311293. The next prime is 121000311401. The reversal of 121000311320 is 23113000121.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 121000311295 and 121000311304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152924 + ... + 515156.

It is an arithmetic number, because the mean of its divisors is an integer number (4865708205).

Almost surely, 2^121000311320 is an apocalyptic number.

121000311320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121000311320 is an abundant number, since it is smaller than the sum of its proper divisors (190405013800).

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

121000311320 is a wasteful number, since it uses less digits than its factorization.

121000311320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363444 (or 363440 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 121000311320 its reverse (23113000121), we get a palindrome (144113311441).

The spelling of 121000311320 in words is "one hundred twenty-one billion, three hundred eleven thousand, three hundred twenty".