121110010031 has 2 divisors, whose sum is σ = 121110010032. Its totient is φ = 121110010030.

The previous prime is 121110009973. The next prime is 121110010051. The reversal of 121110010031 is 130010011121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121110010031 is a prime.

It is a super-2 number, since 2×121110010031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121110009994 and 121110010021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121110010051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60555005015 + 60555005016.

It is an arithmetic number, because the mean of its divisors is an integer number (60555005016).

Almost surely, 2^121110010031 is an apocalyptic number.

121110010031 is a deficient number, since it is larger than the sum of its proper divisors (1).

121110010031 is an equidigital number, since it uses as much as digits as its factorization.

121110010031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 121110010031 its reverse (130010011121), we get a palindrome (251120021152).

The spelling of 121110010031 in words is "one hundred twenty-one billion, one hundred ten million, ten thousand, thirty-one".