121031111130 has 32 divisors (see below), whose sum is σ = 290504717568. Its totient is φ = 32271624000.

The previous prime is 121031111119. The next prime is 121031111137. The reversal of 121031111130 is 31111130121.

It is a super-2 number, since 2×121031111130² (a number of 23 digits) contains 22 as substring.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121031111137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93295 + ... + 500765.

It is an arithmetic number, because the mean of its divisors is an integer number (9078272424).

Almost surely, 2^121031111130 is an apocalyptic number.

121031111130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121031111130 is an abundant number, since it is smaller than the sum of its proper divisors (169473606438).

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

121031111130 is a wasteful number, since it uses less digits than its factorization.

121031111130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417382.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 121031111130 its reverse (31111130121), we get a palindrome (152142241251).

The spelling of 121031111130 in words is "one hundred twenty-one billion, thirty-one million, one hundred eleven thousand, one hundred thirty".