321142020111 has 32 divisors (see below), whose sum is σ = 519149433600. Its totient is φ = 194582017440.

The previous prime is 321142020107. The next prime is 321142020119. The reversal of 321142020111 is 111020241123.

321142020111 is a `hidden beast` number, since 3 + 211 + 420 + 20 + 1 + 11 = 666.

It is not a de Polignac number, because 321142020111 - 2² = 321142020107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321142020119) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1049200 + ... + 1320266.

It is an arithmetic number, because the mean of its divisors is an integer number (16223419800).

Almost surely, 2^321142020111 is an apocalyptic number.

321142020111 is a deficient number, since it is larger than the sum of its proper divisors (198007413489).

321142020111 is a wasteful number, since it uses less digits than its factorization.

321142020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275076 (or 275070 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 321142020111 its reverse (111020241123), we get a palindrome (432162261234).

The spelling of 321142020111 in words is "three hundred twenty-one billion, one hundred forty-two million, twenty thousand, one hundred eleven".