321012011001 has 16 divisors (see below), whose sum is σ = 466936475328. Its totient is φ = 194548603200.

The previous prime is 321012010951. The next prime is 321012011003. The reversal of 321012011001 is 100110210123.

It is not a de Polignac number, because 321012011001 - 2⁶ = 321012010937 is a prime.

It is a super-2 number, since 2×321012011001² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (321012011003) 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, 2330875 + ... + 2464751.

It is an arithmetic number, because the mean of its divisors is an integer number (29183529708).

Almost surely, 2^321012011001 is an apocalyptic number.

It is an amenable number.

321012011001 is a deficient number, since it is larger than the sum of its proper divisors (145924464327).

321012011001 is a wasteful number, since it uses less digits than its factorization.

321012011001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206552.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 321012011001 its reverse (100110210123), we get a palindrome (421122221124).

The spelling of 321012011001 in words is "three hundred twenty-one billion, twelve million, eleven thousand, one".