20340430310 has 16 divisors (see below), whose sum is σ = 36673705152. Its totient is φ = 8122632000.

The previous prime is 20340430301. The next prime is 20340430339. The reversal of 20340430310 is 1303404302.

It is a super-2 number, since 2×20340430310² (a number of 21 digits) contains 22 as substring.

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, 1686206 + ... + 1698225.

It is an arithmetic number, because the mean of its divisors is an integer number (2292106572).

Almost surely, 2^20340430310 is an apocalyptic number.

20340430310 is a deficient number, since it is larger than the sum of its proper divisors (16333274842).

20340430310 is a wasteful number, since it uses less digits than its factorization.

20340430310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3385039.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 20340430310 its reverse (1303404302), we get a palindrome (21643834612).

The spelling of 20340430310 in words is "twenty billion, three hundred forty million, four hundred thirty thousand, three hundred ten".