3561131281132 has 24 divisors (see below), whose sum is σ = 6235242650000. Its totient is φ = 1779633637056.

The previous prime is 3561131281129. The next prime is 3561131281157. The reversal of 3561131281132 is 2311821311653.

It is a junction number, because it is equal to n+sod(n) for n = 3561131281091 and 3561131281100.

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, 63639838 + ... + 63695770.

Almost surely, 2^{3561131281132} is an apocalyptic number.

It is an amenable number.

3561131281132 is a deficient number, since it is larger than the sum of its proper divisors (2674111368868).

3561131281132 is a wasteful number, since it uses less digits than its factorization.

3561131281132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63985 (or 63983 counting only the distinct ones).

The product of its digits is 25920, while the sum is 37.

Adding to 3561131281132 its reverse (2311821311653), we get a palindrome (5872952592785).

The spelling of 3561131281132 in words is "three trillion, five hundred sixty-one billion, one hundred thirty-one million, two hundred eighty-one thousand, one hundred thirty-two".