61231310 has 32 divisors (see below), whose sum is σ = 127092672. Its totient is φ = 20805120.

The previous prime is 61231309. The next prime is 61231349. The reversal of 61231310 is 1313216.

61231310 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×61231310² = 7498546648632200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4040 + ... + 11780.

It is an arithmetic number, because the mean of its divisors is an integer number (3971646).

Almost surely, 2^61231310 is an apocalyptic number.

61231310 is an abundant number, since it is smaller than the sum of its proper divisors (65861362).

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

61231310 is a wasteful number, since it uses less digits than its factorization.

61231310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7868.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 61231310 is about 7825.0437698456. The cubic root of 61231310 is about 394.1466596519.

Adding to 61231310 its reverse (1313216), we get a palindrome (62544526).

The spelling of 61231310 in words is "sixty-one million, two hundred thirty-one thousand, three hundred ten".