131211221201302 has 48 divisors (see below), whose sum is σ = 221778823343616. Its totient is φ = 58150546876400.

The previous prime is 131211221201231. The next prime is 131211221201321. The reversal of 131211221201302 is 203102122112131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18940324 + ... + 24923047.

It is an arithmetic number, because the mean of its divisors is an integer number (4620392152992).

Almost surely, 2^{131211221201302} is an apocalyptic number.

131211221201302 is a deficient number, since it is larger than the sum of its proper divisors (90567602142314).

131211221201302 is a wasteful number, since it uses less digits than its factorization.

131211221201302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43863705 (or 43863694 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 131211221201302 its reverse (203102122112131), we get a palindrome (334313343313433).

The spelling of 131211221201302 in words is "one hundred thirty-one trillion, two hundred eleven billion, two hundred twenty-one million, two hundred one thousand, three hundred two".