121030012133 has 4 divisors (see below), whose sum is σ = 124301093580. Its totient is φ = 117758930688.

The previous prime is 121030012123. The next prime is 121030012139. The reversal of 121030012133 is 331210030121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 331210030121 = 97 ⋅3414536393.

It can be written as a sum of positive squares in 2 ways, for example, as 85581406849 + 35448605284 = 292543^2 + 188278^2 .

It is a cyclic number.

It is not a de Polignac number, because 121030012133 - 2³² = 116735044837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121030012139) 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, 1635540668 + ... + 1635540741.

It is an arithmetic number, because the mean of its divisors is an integer number (31075273395).

Almost surely, 2^121030012133 is an apocalyptic number.

It is an amenable number.

121030012133 is a deficient number, since it is larger than the sum of its proper divisors (3271081447).

121030012133 is an equidigital number, since it uses as much as digits as its factorization.

121030012133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3271081446.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 121030012133 its reverse (331210030121), we get a palindrome (452240042254).

The spelling of 121030012133 in words is "one hundred twenty-one billion, thirty million, twelve thousand, one hundred thirty-three".