213703240605 has 32 divisors (see below), whose sum is σ = 342434542464. Its totient is φ = 113805413376.

The previous prime is 213703240567. The next prime is 213703240633. The reversal of 213703240605 is 506042307312.

It is not a de Polignac number, because 213703240605 - 2⁷ = 213703240477 is a prime.

It is a super-3 number, since 3×213703240605³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44640022 + ... + 44644808.

It is an arithmetic number, because the mean of its divisors is an integer number (10701079452).

Almost surely, 2^213703240605 is an apocalyptic number.

It is an amenable number.

213703240605 is a deficient number, since it is larger than the sum of its proper divisors (128731301859).

213703240605 is a wasteful number, since it uses less digits than its factorization.

213703240605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8605.

The product of its (nonzero) digits is 30240, while the sum is 33.

Adding to 213703240605 its reverse (506042307312), we get a palindrome (719745547917).

The spelling of 213703240605 in words is "two hundred thirteen billion, seven hundred three million, two hundred forty thousand, six hundred five".