1011723516 has 72 divisors (see below), whose sum is σ = 2712724560. Its totient is φ = 316832256.

The previous prime is 1011723497. The next prime is 1011723527. The reversal of 1011723516 is 6153271101.

1011723516 is a `hidden beast` number, since 10 + 117 + 23 + 516 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1011723516.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 451150 + ... + 453386.

It is an arithmetic number, because the mean of its divisors is an integer number (37676730).

Almost surely, 2^1011723516 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 1011723516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1356362280).

1011723516 is an abundant number, since it is smaller than the sum of its proper divisors (1701001044).

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

1011723516 is a wasteful number, since it uses less digits than its factorization.

1011723516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3003 (or 2998 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 1011723516 is about 31807.6015442850. The cubic root of 1011723516 is about 1003.8926661552.

Adding to 1011723516 its reverse (6153271101), we get a palindrome (7164994617).

It can be divided in two parts, 10117 and 23516, that added together give a palindrome (33633).

The spelling of 1011723516 in words is "one billion, eleven million, seven hundred twenty-three thousand, five hundred sixteen".