2111021434 has 8 divisors (see below), whose sum is σ = 3175161408. Its totient is φ = 1052634300.

The previous prime is 2111021431. The next prime is 2111021441. The reversal of 2111021434 is 4341201112.

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

It is a super-2 number, since 2×2111021434² = 8912822989614832712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2111021431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1437292 + ... + 1438759.

It is an arithmetic number, because the mean of its divisors is an integer number (396895176).

Almost surely, 2^2111021434 is an apocalyptic number.

2111021434 is a deficient number, since it is larger than the sum of its proper divisors (1064139974).

2111021434 is a wasteful number, since it uses less digits than its factorization.

2111021434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2876420.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 2111021434 is about 45945.8532840560. The cubic root of 2111021434 is about 1282.8155458282.

Adding to 2111021434 its reverse (4341201112), we get a palindrome (6452222546).

The spelling of 2111021434 in words is "two billion, one hundred eleven million, twenty-one thousand, four hundred thirty-four".