61311343132312 has 64 divisors (see below), whose sum is σ = 141490581583680. Its totient is φ = 24254545416192.

The previous prime is 61311343132271. The next prime is 61311343132331. The reversal of 61311343132312 is 21323134311316.

It is a congruent number.

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, 36207808 + ... + 37863280.

It is an arithmetic number, because the mean of its divisors is an integer number (2210790337245).

Almost surely, 2^{61311343132312} is an apocalyptic number.

It is an amenable number.

61311343132312 is an abundant number, since it is smaller than the sum of its proper divisors (80179238451368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61311343132312 is a wasteful number, since it uses less digits than its factorization.

61311343132312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1706372 (or 1706368 counting only the distinct ones).

The product of its digits is 23328, while the sum is 34.

Adding to 61311343132312 its reverse (21323134311316), we get a palindrome (82634477443628).

The spelling of 61311343132312 in words is "sixty-one trillion, three hundred eleven billion, three hundred forty-three million, one hundred thirty-two thousand, three hundred twelve".