121011312133 has 4 divisors (see below), whose sum is σ = 121025687328. Its totient is φ = 120996936940.

The previous prime is 121011312101. The next prime is 121011312139. The reversal of 121011312133 is 331213110121.

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, and also an emirpimes, since its reverse is a distinct semiprime: 331213110121 = 31357 ⋅10562653.

It is a cyclic number.

It is not a de Polignac number, because 121011312133 - 2⁵ = 121011312101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121011312133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121011312139) 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, 7174963 + ... + 7191808.

It is an arithmetic number, because the mean of its divisors is an integer number (30256421832).

Almost surely, 2^121011312133 is an apocalyptic number.

It is an amenable number.

121011312133 is a deficient number, since it is larger than the sum of its proper divisors (14375195).

121011312133 is an equidigital number, since it uses as much as digits as its factorization.

121011312133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14375194.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 121011312133 its reverse (331213110121), we get a palindrome (452224422254).

The spelling of 121011312133 in words is "one hundred twenty-one billion, eleven million, three hundred twelve thousand, one hundred thirty-three".