2123012 has 6 divisors (see below), whose sum is σ = 3715278. Its totient is φ = 1061504.

The previous prime is 2122979. The next prime is 2123027. The reversal of 2123012 is 2103212.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1943236 + 179776 = 1394^2 + 424^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 2122984 and 2123002.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265373 + ... + 265380.

It is an arithmetic number, because the mean of its divisors is an integer number (619213).

2^2123012 is an apocalyptic number.

It is an amenable number.

2123012 is a deficient number, since it is larger than the sum of its proper divisors (1592266).

2123012 is a wasteful number, since it uses less digits than its factorization.

2123012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530757 (or 530755 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2123012 is about 1457.0559357828. The cubic root of 2123012 is about 128.5239751981.

Adding to 2123012 its reverse (2103212), we get a palindrome (4226224).

The spelling of 2123012 in words is "two million, one hundred twenty-three thousand, twelve".