2123213132112 has 40 divisors (see below), whose sum is σ = 5612524641504. Its totient is φ = 691278693504.

The previous prime is 2123213132101. The next prime is 2123213132167. The reversal of 2123213132112 is 2112313123212.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

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, 514342203 + ... + 514346330.

Almost surely, 2^{2123213132112} is an apocalyptic number.

It is an amenable number.

2123213132112 is an abundant number, since it is smaller than the sum of its proper divisors (3489311509392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2123213132112 is a wasteful number, since it uses less digits than its factorization.

2123213132112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028688587 (or 1028688581 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

Adding to 2123213132112 its reverse (2112313123212), we get a palindrome (4235526255324).

It can be divided in two parts, 212321 and 3132112, that added together give a palindrome (3344433).

The spelling of 2123213132112 in words is "two trillion, one hundred twenty-three billion, two hundred thirteen million, one hundred thirty-two thousand, one hundred twelve".