213245058428 has 24 divisors (see below), whose sum is σ = 373482963504. Its totient is φ = 106535686400.

The previous prime is 213245058421. The next prime is 213245058487. The reversal of 213245058428 is 824850542312.

It is a super-2 number, since 2×213245058428² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213245058421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45167108 + ... + 45171828.

It is an arithmetic number, because the mean of its divisors is an integer number (15561790146).

Almost surely, 2^213245058428 is an apocalyptic number.

It is an amenable number.

213245058428 is a deficient number, since it is larger than the sum of its proper divisors (160237905076).

213245058428 is a wasteful number, since it uses less digits than its factorization.

213245058428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11533 (or 11531 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 44.

The spelling of 213245058428 in words is "two hundred thirteen billion, two hundred forty-five million, fifty-eight thousand, four hundred twenty-eight".