2112780411 has 24 divisors (see below), whose sum is σ = 3671333120. Its totient is φ = 1143760176.

The previous prime is 2112780407. The next prime is 2112780427. The reversal of 2112780411 is 1140872112.

It is not a de Polignac number, because 2112780411 - 2² = 2112780407 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2112780431) 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, 881335 + ... + 883728.

Almost surely, 2^2112780411 is an apocalyptic number.

2112780411 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2112780411 is a deficient number, since it is larger than the sum of its proper divisors (1558552709).

2112780411 is a wasteful number, since it uses less digits than its factorization.

2112780411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1765095 (or 1765092 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The square root of 2112780411 is about 45964.9911454359. The cubic root of 2112780411 is about 1283.1717425297.

The spelling of 2112780411 in words is "two billion, one hundred twelve million, seven hundred eighty thousand, four hundred eleven".