61220323134 has 24 divisors (see below), whose sum is σ = 132648600240. Its totient is φ = 20406071808.

The previous prime is 61220323079. The next prime is 61220323139. The reversal of 61220323134 is 43132302216.

61220323134 is a `hidden beast` number, since 612 + 2 + 0 + 32 + 3 + 13 + 4 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 61220323098 and 61220323107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61220323139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 928927 + ... + 992645.

It is an arithmetic number, because the mean of its divisors is an integer number (5527025010).

Almost surely, 2^61220323134 is an apocalyptic number.

61220323134 is an abundant number, since it is smaller than the sum of its proper divisors (71428277106).

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

61220323134 is a wasteful number, since it uses less digits than its factorization.

61220323134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117104 (or 117101 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The spelling of 61220323134 in words is "sixty-one billion, two hundred twenty million, three hundred twenty-three thousand, one hundred thirty-four".