240020130310451 has 2 divisors, whose sum is σ = 240020130310452. Its totient is φ = 240020130310450.

The previous prime is 240020130310399. The next prime is 240020130310453. The reversal of 240020130310451 is 154013031020042.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240020130310451 is a prime.

Together with 240020130310453, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 240020130310451.

It is not a weakly prime, because it can be changed into another prime (240020130310453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120010065155225 + 120010065155226.

It is an arithmetic number, because the mean of its divisors is an integer number (120010065155226).

Almost surely, 2^{240020130310451} is an apocalyptic number.

240020130310451 is a deficient number, since it is larger than the sum of its proper divisors (1).

240020130310451 is an equidigital number, since it uses as much as digits as its factorization.

240020130310451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 240020130310451 its reverse (154013031020042), we get a palindrome (394033161330493).

The spelling of 240020130310451 in words is "two hundred forty trillion, twenty billion, one hundred thirty million, three hundred ten thousand, four hundred fifty-one".