2111240061 has 24 divisors (see below), whose sum is σ = 3489243264. Its totient is φ = 1205030880.

The previous prime is 2111240039. The next prime is 2111240063. The reversal of 2111240061 is 1600421112.

It is not a de Polignac number, because 2111240061 - 2⁵ = 2111240029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111240063) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36991 + ... + 74771.

It is an arithmetic number, because the mean of its divisors is an integer number (145385136).

Almost surely, 2^2111240061 is an apocalyptic number.

2111240061 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2111240061 is a deficient number, since it is larger than the sum of its proper divisors (1378003203).

2111240061 is a wasteful number, since it uses less digits than its factorization.

2111240061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38681 (or 38678 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 2111240061 is about 45948.2324034342. The cubic root of 2111240061 is about 1282.8598290408.

Adding to 2111240061 its reverse (1600421112), we get a palindrome (3711661173).

The spelling of 2111240061 in words is "two billion, one hundred eleven million, two hundred forty thousand, sixty-one".