121111111111032 has 128 divisors (see below), whose sum is σ = 385975749081600. Its totient is φ = 34468531789824.

The previous prime is 121111111111031. The next prime is 121111111111033. The reversal of 121111111111032 is 230111111111121.

It is a happy number.

121111111111032 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (121111111111031) and next prime (121111111111033).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 121111111110996 and 121111111111014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121111111111031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 155447878 + ... + 156225045.

It is an arithmetic number, because the mean of its divisors is an integer number (3015435539700).

Almost surely, 2^{121111111111032} is an apocalyptic number.

121111111111032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121111111111032 is an abundant number, since it is smaller than the sum of its proper divisors (264864637970568).

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

121111111111032 is a wasteful number, since it uses less digits than its factorization.

121111111111032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311673202 (or 311673192 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 18.

Adding to 121111111111032 its reverse (230111111111121), we get a palindrome (351222222222153).

The spelling of 121111111111032 in words is "one hundred twenty-one trillion, one hundred eleven billion, one hundred eleven million, one hundred eleven thousand, thirty-two".