213401403220 has 24 divisors (see below), whose sum is σ = 449163792000. Its totient is φ = 85166114592.

The previous prime is 213401403211. The next prime is 213401403331. The reversal of 213401403220 is 22304104312.

It is a junction number, because it is equal to n+sod(n) for n = 213401403191 and 213401403200.

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, 12143920 + ... + 12161479.

It is an arithmetic number, because the mean of its divisors is an integer number (18715158000).

Almost surely, 2^213401403220 is an apocalyptic number.

213401403220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213401403220 is an abundant number, since it is smaller than the sum of its proper divisors (235762388780).

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

213401403220 is a wasteful number, since it uses less digits than its factorization.

213401403220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24305847 (or 24305845 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 213401403220 its reverse (22304104312), we get a palindrome (235705507532).

The spelling of 213401403220 in words is "two hundred thirteen billion, four hundred one million, four hundred three thousand, two hundred twenty".