1012143501 has 12 divisors (see below), whose sum is σ = 1547984412. Its totient is φ = 635070336.

The previous prime is 1012143481. The next prime is 1012143527. The reversal of 1012143501 is 1053412101.

1012143501 is a `hidden beast` number, since 1 + 0 + 121 + 43 + 501 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 372104100 + 640039401 = 19290^2 + 25299^2 .

It is not a de Polignac number, because 1012143501 - 2⁵ = 1012143469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012143551) 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, 3307506 + ... + 3307811.

It is an arithmetic number, because the mean of its divisors is an integer number (128998701).

Almost surely, 2^1012143501 is an apocalyptic number.

It is an amenable number.

1012143501 is a deficient number, since it is larger than the sum of its proper divisors (535840911).

1012143501 is a wasteful number, since it uses less digits than its factorization.

1012143501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6615340 (or 6615337 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1012143501 is about 31814.2028188669. The cubic root of 1012143501 is about 1004.0315583616.

Adding to 1012143501 its reverse (1053412101), we get a palindrome (2065555602).

The spelling of 1012143501 in words is "one billion, twelve million, one hundred forty-three thousand, five hundred one".