240203024261 has 2 divisors, whose sum is σ = 240203024262. Its totient is φ = 240203024260.

The previous prime is 240203024213. The next prime is 240203024263. The reversal of 240203024261 is 162420302042.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 237163156036 + 3039868225 = 486994^2 + 55135^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240203024261 is a prime.

It is a super-2 number, since 2×240203024261² (a number of 24 digits) contains 22 as substring.

Together with 240203024263, 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 240203024261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240203024263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120101512130 + 120101512131.

It is an arithmetic number, because the mean of its divisors is an integer number (120101512131).

Almost surely, 2^240203024261 is an apocalyptic number.

It is an amenable number.

240203024261 is a deficient number, since it is larger than the sum of its proper divisors (1).

240203024261 is an equidigital number, since it uses as much as digits as its factorization.

240203024261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 26.

The spelling of 240203024261 in words is "two hundred forty billion, two hundred three million, twenty-four thousand, two hundred sixty-one".