131221240412203 has 8 divisors (see below), whose sum is σ = 131530040282816. Its totient is φ = 130912741080000.

The previous prime is 131221240412117. The next prime is 131221240412231. The reversal of 131221240412203 is 302214042122131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131221240412203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131221240412293) 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, 74260323 + ... + 76006828.

It is an arithmetic number, because the mean of its divisors is an integer number (16441255035352).

Almost surely, 2^{131221240412203} is an apocalyptic number.

131221240412203 is a deficient number, since it is larger than the sum of its proper divisors (308799870613).

131221240412203 is a wasteful number, since it uses less digits than its factorization.

131221240412203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150269205.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 131221240412203 its reverse (302214042122131), we get a palindrome (433435282534334).

The spelling of 131221240412203 in words is "one hundred thirty-one trillion, two hundred twenty-one billion, two hundred forty million, four hundred twelve thousand, two hundred three".