131001220982 has 4 divisors (see below), whose sum is σ = 196501831476. Its totient is φ = 65500610490.

The previous prime is 131001220981. The next prime is 131001220991. The reversal of 131001220982 is 289022100131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 289022100131 = 269 ⋅1074431599.

It is a super-2 number, since 2×131001220982² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131001220981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32750305244 + ... + 32750305247.

It is an arithmetic number, because the mean of its divisors is an integer number (49125457869).

Almost surely, 2^131001220982 is an apocalyptic number.

131001220982 is a deficient number, since it is larger than the sum of its proper divisors (65500610494).

131001220982 is an equidigital number, since it uses as much as digits as its factorization.

131001220982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65500610493.

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 131001220982 in words is "one hundred thirty-one billion, one million, two hundred twenty thousand, nine hundred eighty-two".