131000221402 has 8 divisors (see below), whose sum is σ = 196551422496. Its totient is φ = 65483080572.

The previous prime is 131000221361. The next prime is 131000221403. The reversal of 131000221402 is 204122000131.

131000221402 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×131000221402² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131000221403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8505448 + ... + 8520835.

It is an arithmetic number, because the mean of its divisors is an integer number (24568927812).

Almost surely, 2^131000221402 is an apocalyptic number.

131000221402 is a deficient number, since it is larger than the sum of its proper divisors (65551201094).

131000221402 is a wasteful number, since it uses less digits than its factorization.

131000221402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17030132.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 131000221402 its reverse (204122000131), we get a palindrome (335122221533).

The spelling of 131000221402 in words is "one hundred thirty-one billion, two hundred twenty-one thousand, four hundred two".