121111332121023 has 32 divisors (see below), whose sum is σ = 171096559091136. Its totient is φ = 75939946272768.

The previous prime is 121111332121019. The next prime is 121111332121111. The reversal of 121111332121023 is 320121233111121.

It is not a de Polignac number, because 121111332121023 - 2² = 121111332121019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121111332120984 and 121111332121002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121111332161023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 607361365 + ... + 607560737.

It is an arithmetic number, because the mean of its divisors is an integer number (5346767471598).

Almost surely, 2^{121111332121023} is an apocalyptic number.

121111332121023 is a deficient number, since it is larger than the sum of its proper divisors (49985226970113).

121111332121023 is a wasteful number, since it uses less digits than its factorization.

121111332121023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207403.

The product of its (nonzero) digits is 432, while the sum is 24.

Adding to 121111332121023 its reverse (320121233111121), we get a palindrome (441232565232144).

The spelling of 121111332121023 in words is "one hundred twenty-one trillion, one hundred eleven billion, three hundred thirty-two million, one hundred twenty-one thousand, twenty-three".