423145351322 has 4 divisors (see below), whose sum is σ = 634718026986. Its totient is φ = 211572675660.

The previous prime is 423145351283. The next prime is 423145351331. The reversal of 423145351322 is 223153541324.

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

It can be written as a sum of positive squares in only one way, i.e., 261815399041 + 161329952281 = 511679^2 + 401659^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105786337829 + ... + 105786337832.

Almost surely, 2^423145351322 is an apocalyptic number.

423145351322 is a deficient number, since it is larger than the sum of its proper divisors (211572675664).

423145351322 is a wasteful number, since it uses less digits than its factorization.

423145351322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211572675663.

The product of its digits is 86400, while the sum is 35.

Adding to 423145351322 its reverse (223153541324), we get a palindrome (646298892646).

The spelling of 423145351322 in words is "four hundred twenty-three billion, one hundred forty-five million, three hundred fifty-one thousand, three hundred twenty-two".