121116031 has 2 divisors, whose sum is σ = 121116032. Its totient is φ = 121116030.

The previous prime is 121116029. The next prime is 121116067. The reversal of 121116031 is 130611121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121116031 - 2¹ = 121116029 is a prime.

It is a super-2 number, since 2×121116031² = 29338185930385922, which contains 22 as substring.

Together with 121116029, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 121115996 and 121116014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121146031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60558015 + 60558016.

It is an arithmetic number, because the mean of its divisors is an integer number (60558016).

Almost surely, 2^121116031 is an apocalyptic number.

121116031 is a deficient number, since it is larger than the sum of its proper divisors (1).

121116031 is an equidigital number, since it uses as much as digits as its factorization.

121116031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 121116031 is about 11005.2728725825. The cubic root of 121116031 is about 494.7667928444.

Adding to 121116031 its reverse (130611121), we get a palindrome (251727152).

The spelling of 121116031 in words is "one hundred twenty-one million, one hundred sixteen thousand, thirty-one".