61130340220 has 24 divisors (see below), whose sum is σ = 128379813408. Its totient is φ = 24450974400.

The previous prime is 61130340211. The next prime is 61130340253. The reversal of 61130340220 is 2204303116.

It is a junction number, because it is equal to n+sod(n) for n = 61130340191 and 61130340200.

It is a congruent number.

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, 450985 + ... + 570655.

It is an arithmetic number, because the mean of its divisors is an integer number (5349158892).

Almost surely, 2^61130340220 is an apocalyptic number.

It is an amenable number.

61130340220 is an abundant number, since it is smaller than the sum of its proper divisors (67249473188).

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

61130340220 is a wasteful number, since it uses less digits than its factorization.

61130340220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145221 (or 145219 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 61130340220 its reverse (2204303116), we get a palindrome (63334643336).

The spelling of 61130340220 in words is "sixty-one billion, one hundred thirty million, three hundred forty thousand, two hundred twenty".