121031051 has 2 divisors, whose sum is σ = 121031052. Its totient is φ = 121031050.

The previous prime is 121031021. The next prime is 121031069. The reversal of 121031051 is 150130121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121031051 is a prime.

It is not a weakly prime, because it can be changed into another prime (121031021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60515525 + 60515526.

It is an arithmetic number, because the mean of its divisors is an integer number (60515526).

Almost surely, 2^121031051 is an apocalyptic number.

121031051 is a deficient number, since it is larger than the sum of its proper divisors (1).

121031051 is an equidigital number, since it uses as much as digits as its factorization.

121031051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 121031051 is about 11001.4113185536. The cubic root of 121031051 is about 494.6510495110.

Adding to 121031051 its reverse (150130121), we get a palindrome (271161172).

The spelling of 121031051 in words is "one hundred twenty-one million, thirty-one thousand, fifty-one".