61313231352 has 64 divisors (see below), whose sum is σ = 156562427520. Its totient is φ = 20004386688.

The previous prime is 61313231351. The next prime is 61313231359. The reversal of 61313231352 is 25313231316.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61313231351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131023 + ... + 373889.

It is an arithmetic number, because the mean of its divisors is an integer number (2446287930).

Almost surely, 2^61313231352 is an apocalyptic number.

It is an amenable number.

61313231352 is an abundant number, since it is smaller than the sum of its proper divisors (95249196168).

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

61313231352 is a wasteful number, since it uses less digits than its factorization.

61313231352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243100 (or 243096 counting only the distinct ones).

The product of its digits is 9720, while the sum is 30.

Adding to 61313231352 its reverse (25313231316), we get a palindrome (86626462668).

The spelling of 61313231352 in words is "sixty-one billion, three hundred thirteen million, two hundred thirty-one thousand, three hundred fifty-two".