121231132093 has 4 divisors (see below), whose sum is σ = 121547662848. Its totient is φ = 120914601340.

The previous prime is 121231132069. The next prime is 121231132117. The reversal of 121231132093 is 390231132121.

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: 390231132121 = 14951 ⋅26100671.

It is an interprime number because it is at equal distance from previous prime (121231132069) and next prime (121231132117).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121231132093 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 (121231135093) 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, 158264803 + ... + 158265568.

It is an arithmetic number, because the mean of its divisors is an integer number (30386915712).

Almost surely, 2^121231132093 is an apocalyptic number.

It is an amenable number.

121231132093 is a deficient number, since it is larger than the sum of its proper divisors (316530755).

121231132093 is an equidigital number, since it uses as much as digits as its factorization.

121231132093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316530754.

The product of its (nonzero) digits is 1944, while the sum is 28.

Adding to 121231132093 its sum of digits (28), we get a palindrome (121231132121).

The spelling of 121231132093 in words is "one hundred twenty-one billion, two hundred thirty-one million, one hundred thirty-two thousand, ninety-three".