213233111420 has 48 divisors (see below), whose sum is σ = 513131602368. Its totient is φ = 72912476160.

The previous prime is 213233111387. The next prime is 213233111423. The reversal of 213233111420 is 24111332312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213233111423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1989461 + ... + 2093900.

It is an arithmetic number, because the mean of its divisors is an integer number (10690241716).

Almost surely, 2^213233111420 is an apocalyptic number.

213233111420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213233111420 is an abundant number, since it is smaller than the sum of its proper divisors (299898490948).

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

213233111420 is a wasteful number, since it uses less digits than its factorization.

213233111420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4083750 (or 4083748 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 213233111420 its reverse (24111332312), we get a palindrome (237344443732).

The spelling of 213233111420 in words is "two hundred thirteen billion, two hundred thirty-three million, one hundred eleven thousand, four hundred twenty".