131311230122002 has 24 divisors (see below), whose sum is σ = 232263391956156. Its totient is φ = 55505334060288.

The previous prime is 131311230121963. The next prime is 131311230122011. The reversal of 131311230122002 is 200221032113131.

It can be written as a sum of positive squares in 2 ways, for example, as 112964990993001 + 18346239129001 = 10628499^2 + 4283251^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9177462103 + ... + 9177476410.

Almost surely, 2^{131311230122002} is an apocalyptic number.

131311230122002 is a deficient number, since it is larger than the sum of its proper divisors (100952161834154).

131311230122002 is a wasteful number, since it uses less digits than its factorization.

131311230122002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18354938602 (or 18354938595 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 131311230122002 its reverse (200221032113131), we get a palindrome (331532262235133).

The spelling of 131311230122002 in words is "one hundred thirty-one trillion, three hundred eleven billion, two hundred thirty million, one hundred twenty-two thousand, two".