121111434013331 has 4 divisors (see below), whose sum is σ = 121111808621664. Its totient is φ = 121111059405000.

The previous prime is 121111434013327. The next prime is 121111434013393. The reversal of 121111434013331 is 133310434111121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121111434013331 - 2² = 121111434013327 is a prime.

It is a super-2 number, since 2×121111434013331² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121111434013294 and 121111434013303.

It is not an unprimeable number, because it can be changed into a prime (121111434013301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186818795 + ... + 187465956.

It is an arithmetic number, because the mean of its divisors is an integer number (30277952155416).

Almost surely, 2^{121111434013331} is an apocalyptic number.

121111434013331 is a deficient number, since it is larger than the sum of its proper divisors (374608333).

121111434013331 is an equidigital number, since it uses as much as digits as its factorization.

121111434013331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374608332.

The product of its (nonzero) digits is 2592, while the sum is 29.

Adding to 121111434013331 its reverse (133310434111121), we get a palindrome (254421868124452).

The spelling of 121111434013331 in words is "one hundred twenty-one trillion, one hundred eleven billion, four hundred thirty-four million, thirteen thousand, three hundred thirty-one".