61213203115 has 8 divisors (see below), whose sum is σ = 75441137040. Its totient is φ = 47647033632.

The previous prime is 61213203061. The next prime is 61213203131. The reversal of 61213203115 is 51130231216.

It is a happy number.

61213203115 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 61213203115 - 2¹¹ = 61213201067 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61213203115.

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, 165440905 + ... + 165441274.

It is an arithmetic number, because the mean of its divisors is an integer number (9430142130).

Almost surely, 2^61213203115 is an apocalyptic number.

61213203115 is a deficient number, since it is larger than the sum of its proper divisors (14227933925).

61213203115 is a wasteful number, since it uses less digits than its factorization.

61213203115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330882221.

The product of its (nonzero) digits is 1080, while the sum is 25.

The spelling of 61213203115 in words is "sixty-one billion, two hundred thirteen million, two hundred three thousand, one hundred fifteen".