1012115601 has 64 divisors (see below), whose sum is σ = 1751592960. Its totient is φ = 565678080.

The previous prime is 1012115597. The next prime is 1012115641. The reversal of 1012115601 is 1065112101.

It is a happy number.

1012115601 is a `hidden beast` number, since 101 + 2 + 1 + 1 + 560 + 1 = 666.

It is not a de Polignac number, because 1012115601 - 2² = 1012115597 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1012115641) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3254236 + ... + 3254546.

It is an arithmetic number, because the mean of its divisors is an integer number (27368640).

Almost surely, 2^1012115601 is an apocalyptic number.

It is an amenable number.

1012115601 is a deficient number, since it is larger than the sum of its proper divisors (739477359).

1012115601 is a wasteful number, since it uses less digits than its factorization.

1012115601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651 (or 645 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 18.

The square root of 1012115601 is about 31813.7643324395. The cubic root of 1012115601 is about 1004.0223328128.

Adding to 1012115601 its reverse (1065112101), we get a palindrome (2077227702).

The spelling of 1012115601 in words is "one billion, twelve million, one hundred fifteen thousand, six hundred one".