245211240431 has 2 divisors, whose sum is σ = 245211240432. Its totient is φ = 245211240430.

The previous prime is 245211240419. The next prime is 245211240457. The reversal of 245211240431 is 134042112542.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245211240431 - 2⁶ = 245211240367 is a prime.

It is a super-2 number, since 2×245211240431² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 245211240394 and 245211240403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245211240481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122605620215 + 122605620216.

It is an arithmetic number, because the mean of its divisors is an integer number (122605620216).

Almost surely, 2^245211240431 is an apocalyptic number.

245211240431 is a deficient number, since it is larger than the sum of its proper divisors (1).

245211240431 is an equidigital number, since it uses as much as digits as its factorization.

245211240431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 245211240431 its reverse (134042112542), we get a palindrome (379253352973).

The spelling of 245211240431 in words is "two hundred forty-five billion, two hundred eleven million, two hundred forty thousand, four hundred thirty-one".