121335043031 has 2 divisors, whose sum is σ = 121335043032. Its totient is φ = 121335043030.

The previous prime is 121335043003. The next prime is 121335043051. The reversal of 121335043031 is 130340533121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121335043031 - 2³⁴ = 104155173847 is a prime.

It is a super-2 number, since 2×121335043031² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121335043051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60667521515 + 60667521516.

It is an arithmetic number, because the mean of its divisors is an integer number (60667521516).

Almost surely, 2^121335043031 is an apocalyptic number.

121335043031 is a deficient number, since it is larger than the sum of its proper divisors (1).

121335043031 is an equidigital number, since it uses as much as digits as its factorization.

121335043031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 121335043031 its reverse (130340533121), we get a palindrome (251675576152).

The spelling of 121335043031 in words is "one hundred twenty-one billion, three hundred thirty-five million, forty-three thousand, thirty-one".