321012143232040 has 64 divisors (see below), whose sum is σ = 802928636213760. Its totient is φ = 114704090876160.

The previous prime is 321012143232037. The next prime is 321012143232047. The reversal of 321012143232040 is 40232341210123.

It is a super-2 number, since 2×321012143232040² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (321012143232047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9956936214 + ... + 9956968453.

It is an arithmetic number, because the mean of its divisors is an integer number (12545759940840).

Almost surely, 2^{321012143232040} is an apocalyptic number.

It is an amenable number.

321012143232040 is an abundant number, since it is smaller than the sum of its proper divisors (481916492981720).

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

321012143232040 is a wasteful number, since it uses less digits than its factorization.

321012143232040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19913904722 (or 19913904718 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 321012143232040 its reverse (40232341210123), we get a palindrome (361244484442163).

The spelling of 321012143232040 in words is "three hundred twenty-one trillion, twelve billion, one hundred forty-three million, two hundred thirty-two thousand, forty".