2111002545 has 16 divisors (see below), whose sum is σ = 3378356352. Its totient is φ = 1125617280.

The previous prime is 2111002519. The next prime is 2111002549. The reversal of 2111002545 is 5452001112.

It is not a de Polignac number, because 2111002545 - 2¹⁰ = 2111001521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2111002549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68509 + ... + 94421.

It is an arithmetic number, because the mean of its divisors is an integer number (211147272).

Almost surely, 2^2111002545 is an apocalyptic number.

It is an amenable number.

2111002545 is a deficient number, since it is larger than the sum of its proper divisors (1267353807).

2111002545 is a wasteful number, since it uses less digits than its factorization.

2111002545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31352.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 2111002545 is about 45945.6477264169. The cubic root of 2111002545 is about 1282.8117196907.

Adding to 2111002545 its reverse (5452001112), we get a palindrome (7563003657).

The spelling of 2111002545 in words is "two billion, one hundred eleven million, two thousand, five hundred forty-five".