245120442031 has 4 divisors (see below), whose sum is σ = 245167342312. Its totient is φ = 245073541752.

The previous prime is 245120442013. The next prime is 245120442037. The reversal of 245120442031 is 130244021542.

245120442031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 245120442031 - 2⁵ = 245120441999 is a prime.

It is a super-2 number, since 2×245120442031² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245120442037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23442300 + ... + 23452753.

It is an arithmetic number, because the mean of its divisors is an integer number (61291835578).

Almost surely, 2^245120442031 is an apocalyptic number.

245120442031 is a deficient number, since it is larger than the sum of its proper divisors (46900281).

245120442031 is an equidigital number, since it uses as much as digits as its factorization.

245120442031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46900280.

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 245120442031 its reverse (130244021542), we get a palindrome (375364463573).

The spelling of 245120442031 in words is "two hundred forty-five billion, one hundred twenty million, four hundred forty-two thousand, thirty-one".