2101234 has 16 divisors (see below), whose sum is σ = 3483648. Its totient is φ = 945472.

The previous prime is 2101223. The next prime is 2101237. The reversal of 2101234 is 4321012.

2101234 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 562 + ... + 2125.

It is an arithmetic number, because the mean of its divisors is an integer number (217728).

2^2101234 is an apocalyptic number.

2101234 is a deficient number, since it is larger than the sum of its proper divisors (1382414).

2101234 is a wasteful number, since it uses less digits than its factorization.

2101234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2729.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2101234 is about 1449.5633825397. The cubic root of 2101234 is about 128.0829946776.

Adding to 2101234 its reverse (4321012), we get a palindrome (6422246).

It can be divided in two parts, 210 and 1234, that added together give a square (1444 = 38²).

The spelling of 2101234 in words is "two million, one hundred one thousand, two hundred thirty-four".