121131011000 has 32 divisors (see below), whose sum is σ = 283446568080. Its totient is φ = 48452404000.

The previous prime is 121131010963. The next prime is 121131011003. The reversal of 121131011000 is 110131121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121131011003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60564506 + ... + 60566505.

Almost surely, 2^121131011000 is an apocalyptic number.

121131011000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121131011000 is an abundant number, since it is smaller than the sum of its proper divisors (162315557080).

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

121131011000 is a wasteful number, since it uses less digits than its factorization.

121131011000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121131032 (or 121131018 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 121131011000 its reverse (110131121), we get a palindrome (121241142121).

The spelling of 121131011000 in words is "one hundred twenty-one billion, one hundred thirty-one million, eleven thousand".