121174010831 has 2 divisors, whose sum is σ = 121174010832. Its totient is φ = 121174010830.

The previous prime is 121174010809. The next prime is 121174010917. The reversal of 121174010831 is 138010471121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121174010831 is a prime.

It is a super-2 number, since 2×121174010831² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121174010794 and 121174010803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121174018831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60587005415 + 60587005416.

It is an arithmetic number, because the mean of its divisors is an integer number (60587005416).

Almost surely, 2^121174010831 is an apocalyptic number.

121174010831 is a deficient number, since it is larger than the sum of its proper divisors (1).

121174010831 is an equidigital number, since it uses as much as digits as its factorization.

121174010831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 29.

Adding to 121174010831 its reverse (138010471121), we get a palindrome (259184481952).

The spelling of 121174010831 in words is "one hundred twenty-one billion, one hundred seventy-four million, ten thousand, eight hundred thirty-one".