1261010316 has 48 divisors (see below), whose sum is σ = 3105603200. Its totient is φ = 397135872.

The previous prime is 1261010299. The next prime is 1261010327. The reversal of 1261010316 is 6130101621.

1261010316 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1261010292 and 1261010301.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79116 + ... + 93708.

Almost surely, 2^1261010316 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1261010316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1552801600).

1261010316 is an abundant number, since it is smaller than the sum of its proper divisors (1844592884).

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

1261010316 is a wasteful number, since it uses less digits than its factorization.

1261010316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14998 (or 14996 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 1261010316 is about 35510.7070613921. The cubic root of 1261010316 is about 1080.3709048414.

Adding to 1261010316 its reverse (6130101621), we get a palindrome (7391111937).

The spelling of 1261010316 in words is "one billion, two hundred sixty-one million, ten thousand, three hundred sixteen".