240121331340029 has 2 divisors, whose sum is σ = 240121331340030. Its totient is φ = 240121331340028.

The previous prime is 240121331339941. The next prime is 240121331340097. The reversal of 240121331340029 is 920043133121042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 230505117936025 + 9616213404004 = 15182395^2 + 3101002^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240121331340029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240121331300029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120060665670014 + 120060665670015.

It is an arithmetic number, because the mean of its divisors is an integer number (120060665670015).

Almost surely, 2^{240121331340029} is an apocalyptic number.

It is an amenable number.

240121331340029 is a deficient number, since it is larger than the sum of its proper divisors (1).

240121331340029 is an equidigital number, since it uses as much as digits as its factorization.

240121331340029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 35.

The spelling of 240121331340029 in words is "two hundred forty trillion, one hundred twenty-one billion, three hundred thirty-one million, three hundred forty thousand, twenty-nine".