121854730031 has 2 divisors, whose sum is σ = 121854730032. Its totient is φ = 121854730030.

The previous prime is 121854730007. The next prime is 121854730037. The reversal of 121854730031 is 130037458121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121854730031 - 2⁶ = 121854729967 is a prime.

It is a super-2 number, since 2×121854730031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121854729973 and 121854730000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121854730037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60927365015 + 60927365016.

It is an arithmetic number, because the mean of its divisors is an integer number (60927365016).

Almost surely, 2^121854730031 is an apocalyptic number.

121854730031 is a deficient number, since it is larger than the sum of its proper divisors (1).

121854730031 is an equidigital number, since it uses as much as digits as its factorization.

121854730031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 35.

The spelling of 121854730031 in words is "one hundred twenty-one billion, eight hundred fifty-four million, seven hundred thirty thousand, thirty-one".