121112031311101 has 4 divisors (see below), whose sum is σ = 126377771802912. Its totient is φ = 115846290819292.

The previous prime is 121112031311071. The next prime is 121112031311107. The reversal of 121112031311101 is 101113130211121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121112031311101 - 2²⁷ = 121111897093373 is a prime.

It is a super-2 number, since 2×121112031311101² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121112031311107) 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, 2632870245871 + ... + 2632870245916.

It is an arithmetic number, because the mean of its divisors is an integer number (31594442950728).

Almost surely, 2^{121112031311101} is an apocalyptic number.

It is an amenable number.

121112031311101 is a deficient number, since it is larger than the sum of its proper divisors (5265740491811).

121112031311101 is an equidigital number, since it uses as much as digits as its factorization.

121112031311101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5265740491810.

The product of its (nonzero) digits is 36, while the sum is 19.

Adding to 121112031311101 its reverse (101113130211121), we get a palindrome (222225161522222).

The spelling of 121112031311101 in words is "one hundred twenty-one trillion, one hundred twelve billion, thirty-one million, three hundred eleven thousand, one hundred one".