1002111541 has 8 divisors (see below), whose sum is σ = 1045998720. Its totient is φ = 958250832.

The previous prime is 1002111503. The next prime is 1002111613. The reversal of 1002111541 is 1451112001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1002111541 - 2⁷ = 1002111413 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 (1002111941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142455 + ... + 149323.

It is an arithmetic number, because the mean of its divisors is an integer number (130749840).

Almost surely, 2^1002111541 is an apocalyptic number.

It is an amenable number.

1002111541 is a deficient number, since it is larger than the sum of its proper divisors (43887179).

1002111541 is an equidigital number, since it uses as much as digits as its factorization.

1002111541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13235.

The product of its (nonzero) digits is 40, while the sum is 16.

The square root of 1002111541 is about 31656.1453907452. The cubic root of 1002111541 is about 1000.7033521797.

Adding to 1002111541 its reverse (1451112001), we get a palindrome (2453223542).

The spelling of 1002111541 in words is "one billion, two million, one hundred eleven thousand, five hundred forty-one".