321023113031402 has 4 divisors (see below), whose sum is σ = 481534669547106. Its totient is φ = 160511556515700.

The previous prime is 321023113031317. The next prime is 321023113031497. The reversal of 321023113031402 is 204130311320123.

It is a happy number.

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., 167138070819721 + 153885042211681 = 12928189^2 + 12405041^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80255778257849 + ... + 80255778257852.

Almost surely, 2^{321023113031402} is an apocalyptic number.

321023113031402 is a deficient number, since it is larger than the sum of its proper divisors (160511556515704).

321023113031402 is a wasteful number, since it uses less digits than its factorization.

321023113031402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160511556515703.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 321023113031402 its reverse (204130311320123), we get a palindrome (525153424351525).

The spelling of 321023113031402 in words is "three hundred twenty-one trillion, twenty-three billion, one hundred thirteen million, thirty-one thousand, four hundred two".