61311356302 has 8 divisors (see below), whose sum is σ = 105105182256. Its totient is φ = 26276295552.

The previous prime is 61311356251. The next prime is 61311356311. The reversal of 61311356302 is 20365311316.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2189691283 + ... + 2189691310.

It is an arithmetic number, because the mean of its divisors is an integer number (13138147782).

Almost surely, 2^61311356302 is an apocalyptic number.

61311356302 is a deficient number, since it is larger than the sum of its proper divisors (43793825954).

61311356302 is a wasteful number, since it uses less digits than its factorization.

61311356302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4379382602.

The product of its (nonzero) digits is 9720, while the sum is 31.

Adding to 61311356302 its reverse (20365311316), we get a palindrome (81676667618).

The spelling of 61311356302 in words is "sixty-one billion, three hundred eleven million, three hundred fifty-six thousand, three hundred two".