131212311202 has 32 divisors (see below), whose sum is σ = 230968857600. Its totient is φ = 54743989968.

The previous prime is 131212311187. The next prime is 131212311211. The reversal of 131212311202 is 202113212131.

It is a super-2 number, since 2×131212311202² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 131212311202.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 686052 + ... + 856207.

It is an arithmetic number, because the mean of its divisors is an integer number (7217776800).

Almost surely, 2^131212311202 is an apocalyptic number.

131212311202 is a deficient number, since it is larger than the sum of its proper divisors (99756546398).

131212311202 is a wasteful number, since it uses less digits than its factorization.

131212311202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1542430.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 131212311202 its reverse (202113212131), we get a palindrome (333325523333).

The spelling of 131212311202 in words is "one hundred thirty-one billion, two hundred twelve million, three hundred eleven thousand, two hundred two".