321145402670 has 8 divisors (see below), whose sum is σ = 578061724824. Its totient is φ = 128458161064.

The previous prime is 321145402667. The next prime is 321145402709. The reversal of 321145402670 is 76204541123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 321145402670.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16057270124 + ... + 16057270143.

It is an arithmetic number, because the mean of its divisors is an integer number (72257715603).

Almost surely, 2^321145402670 is an apocalyptic number.

321145402670 is a deficient number, since it is larger than the sum of its proper divisors (256916322154).

321145402670 is a wasteful number, since it uses less digits than its factorization.

321145402670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32114540274.

The product of its (nonzero) digits is 40320, while the sum is 35.

Adding to 321145402670 its reverse (76204541123), we get a palindrome (397349943793).

The spelling of 321145402670 in words is "three hundred twenty-one billion, one hundred forty-five million, four hundred two thousand, six hundred seventy".