2131631601106 has 16 divisors (see below), whose sum is σ = 3714130941120. Its totient is φ = 898580065680.

The previous prime is 2131631601097. The next prime is 2131631601139. The reversal of 2131631601106 is 6011061361312.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1248027016 + ... + 1248028723.

It is an arithmetic number, because the mean of its divisors is an integer number (232133183820).

Almost surely, 2^{2131631601106} is an apocalyptic number.

2131631601106 is a deficient number, since it is larger than the sum of its proper divisors (1582499340014).

2131631601106 is a wasteful number, since it uses less digits than its factorization.

2131631601106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2496055809.

The product of its (nonzero) digits is 3888, while the sum is 31.

Adding to 2131631601106 its reverse (6011061361312), we get a palindrome (8142692962418).

The spelling of 2131631601106 in words is "two trillion, one hundred thirty-one billion, six hundred thirty-one million, six hundred one thousand, one hundred six".