213321123092 has 144 divisors (see below), whose sum is σ = 483146814528. Its totient is φ = 81478010880.

The previous prime is 213321123091. The next prime is 213321123101. The reversal of 213321123092 is 290321123312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213321123091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22372358 + ... + 22381890.

It is an arithmetic number, because the mean of its divisors is an integer number (3355186212).

Almost surely, 2^213321123092 is an apocalyptic number.

213321123092 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213321123092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241573407264).

213321123092 is an abundant number, since it is smaller than the sum of its proper divisors (269825691436).

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

213321123092 is a wasteful number, since it uses less digits than its factorization.

213321123092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9766 (or 9757 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The spelling of 213321123092 in words is "two hundred thirteen billion, three hundred twenty-one million, one hundred twenty-three thousand, ninety-two".