121302440293 has 2 divisors, whose sum is σ = 121302440294. Its totient is φ = 121302440292.

The previous prime is 121302440291. The next prime is 121302440327. The reversal of 121302440293 is 392044203121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120813941889 + 488498404 = 347583^2 + 22102^2 .

It is a cyclic number.

It is not a de Polignac number, because 121302440293 - 2¹ = 121302440291 is a prime.

Together with 121302440291, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121302440291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60651220146 + 60651220147.

It is an arithmetic number, because the mean of its divisors is an integer number (60651220147).

Almost surely, 2^121302440293 is an apocalyptic number.

It is an amenable number.

121302440293 is a deficient number, since it is larger than the sum of its proper divisors (1).

121302440293 is an equidigital number, since it uses as much as digits as its factorization.

121302440293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 121302440293 in words is "one hundred twenty-one billion, three hundred two million, four hundred forty thousand, two hundred ninety-three".