1911002012 has 24 divisors (see below), whose sum is σ = 3524224032. Its totient is φ = 904904000.

The previous prime is 1911001993. The next prime is 1911002047. The reversal of 1911002012 is 2102001191.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93539 + ... + 112122.

It is an arithmetic number, because the mean of its divisors is an integer number (146842668).

Almost surely, 2^1911002012 is an apocalyptic number.

It is an amenable number.

1911002012 is a deficient number, since it is larger than the sum of its proper divisors (1613222020).

1911002012 is a wasteful number, since it uses less digits than its factorization.

1911002012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205789 (or 205787 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 17.

The square root of 1911002012 is about 43715.0090014860. The cubic root of 1911002012 is about 1240.9483752430.

The spelling of 1911002012 in words is "one billion, nine hundred eleven million, two thousand, twelve".