131220210020102 has 48 divisors (see below), whose sum is σ = 229272164086032. Its totient is φ = 56162051527680.

The previous prime is 131220210020077. The next prime is 131220210020171. The reversal of 131220210020102 is 201020012022131.

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, 234834998 + ... + 235393110.

It is an arithmetic number, because the mean of its divisors is an integer number (4776503418459).

Almost surely, 2^{131220210020102} is an apocalyptic number.

131220210020102 is a deficient number, since it is larger than the sum of its proper divisors (98051954065930).

131220210020102 is a wasteful number, since it uses less digits than its factorization.

131220210020102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561333 (or 561326 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 131220210020102 its reverse (201020012022131), we get a palindrome (332240222042233).

The spelling of 131220210020102 in words is "one hundred thirty-one trillion, two hundred twenty billion, two hundred ten million, twenty thousand, one hundred two".