1001012141 has 4 divisors (see below), whose sum is σ = 1044534432. Its totient is φ = 957489852.

The previous prime is 1001012123. The next prime is 1001012143. The reversal of 1001012141 is 1412101001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1412101001 = 2411 ⋅585691.

It is a cyclic number.

It is not a de Polignac number, because 1001012141 - 2¹⁰ = 1001011117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001012143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21761111 + ... + 21761156.

It is an arithmetic number, because the mean of its divisors is an integer number (261133608).

Almost surely, 2^1001012141 is an apocalyptic number.

It is an amenable number.

1001012141 is a deficient number, since it is larger than the sum of its proper divisors (43522291).

1001012141 is an equidigital number, since it uses as much as digits as its factorization.

1001012141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43522290.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1001012141 is about 31638.7759086852. The cubic root of 1001012141 is about 1000.3372665718.

Adding to 1001012141 its reverse (1412101001), we get a palindrome (2413113142).

The spelling of 1001012141 in words is "one billion, one million, twelve thousand, one hundred forty-one".