245223123142 has 16 divisors (see below), whose sum is σ = 371207243232. Its totient is φ = 121488062080.

The previous prime is 245223123077. The next prime is 245223123179. The reversal of 245223123142 is 241321322542.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 551148 + ... + 891184.

It is an arithmetic number, because the mean of its divisors is an integer number (23200452702).

Almost surely, 2^245223123142 is an apocalyptic number.

245223123142 is a deficient number, since it is larger than the sum of its proper divisors (125984120090).

245223123142 is a wasteful number, since it uses less digits than its factorization.

245223123142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343343.

The product of its digits is 23040, while the sum is 31.

Adding to 245223123142 its reverse (241321322542), we get a palindrome (486544445684).

The spelling of 245223123142 in words is "two hundred forty-five billion, two hundred twenty-three million, one hundred twenty-three thousand, one hundred forty-two".