213435040232651 has 4 divisors (see below), whose sum is σ = 213437179667472. Its totient is φ = 213432900797832.

The previous prime is 213435040232647. The next prime is 213435040232653. The reversal of 213435040232651 is 156232040534312.

213435040232651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 213435040232651 - 2² = 213435040232647 is a prime.

It is a super-2 number, since 2×213435040232651² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213435040232599 and 213435040232608.

It is not an unprimeable number, because it can be changed into a prime (213435040232653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1069567760 + ... + 1069767293.

It is an arithmetic number, because the mean of its divisors is an integer number (53359294916868).

Almost surely, 2^{213435040232651} is an apocalyptic number.

213435040232651 is a deficient number, since it is larger than the sum of its proper divisors (2139434821).

213435040232651 is an equidigital number, since it uses as much as digits as its factorization.

213435040232651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2139434820.

The product of its (nonzero) digits is 518400, while the sum is 41.

Adding to 213435040232651 its reverse (156232040534312), we get a palindrome (369667080766963).

The spelling of 213435040232651 in words is "two hundred thirteen trillion, four hundred thirty-five billion, forty million, two hundred thirty-two thousand, six hundred fifty-one".