230143405522 has 4 divisors (see below), whose sum is σ = 345215108286. Its totient is φ = 115071702760.

The previous prime is 230143405501. The next prime is 230143405537. The reversal of 230143405522 is 225504341032.

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., 229430462121 + 712943401 = 478989^2 + 26701^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57535851379 + ... + 57535851382.

Almost surely, 2^230143405522 is an apocalyptic number.

230143405522 is a deficient number, since it is larger than the sum of its proper divisors (115071702764).

230143405522 is a wasteful number, since it uses less digits than its factorization.

230143405522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115071702763.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 230143405522 its reverse (225504341032), we get a palindrome (455647746554).

The spelling of 230143405522 in words is "two hundred thirty billion, one hundred forty-three million, four hundred five thousand, five hundred twenty-two".