223431145242 has 16 divisors (see below), whose sum is σ = 446868964800. Its totient is φ = 74475936032.

The previous prime is 223431145241. The next prime is 223431145243. The reversal of 223431145242 is 242541134322.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (223431145241) and next prime (223431145243).

It is not an unprimeable number, because it can be changed into a prime (223431145241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227923 + ... + 706265.

It is an arithmetic number, because the mean of its divisors is an integer number (27929310300).

Almost surely, 2^223431145242 is an apocalyptic number.

223431145242 is an abundant number, since it is smaller than the sum of its proper divisors (223437819558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223431145242 is a wasteful number, since it uses less digits than its factorization.

223431145242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556197.

The product of its digits is 46080, while the sum is 33.

Adding to 223431145242 its reverse (242541134322), we get a palindrome (465972279564).

The spelling of 223431145242 in words is "two hundred twenty-three billion, four hundred thirty-one million, one hundred forty-five thousand, two hundred forty-two".