131210421001 has 8 divisors (see below), whose sum is σ = 143148700800. Its totient is φ = 119273817840.

The previous prime is 131210420987. The next prime is 131210421007. The reversal of 131210421001 is 100124012131.

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

It is a cyclic number.

It is not a de Polignac number, because 131210421001 - 2⁹ = 131210420489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131210421007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252646 + ... + 571183.

It is an arithmetic number, because the mean of its divisors is an integer number (17893587600).

Almost surely, 2^131210421001 is an apocalyptic number.

131210421001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

131210421001 is a deficient number, since it is larger than the sum of its proper divisors (11938279799).

131210421001 is a wasteful number, since it uses less digits than its factorization.

131210421001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838319.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 131210421001 its reverse (100124012131), we get a palindrome (231334433132).

The spelling of 131210421001 in words is "one hundred thirty-one billion, two hundred ten million, four hundred twenty-one thousand, one".