20434034311430 has 64 divisors (see below), whose sum is σ = 38871069143040. Its totient is φ = 7718322104064.

The previous prime is 20434034311429. The next prime is 20434034311451. The reversal of 20434034311430 is 3411343043402.

It is a Curzon number.

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, 157050962 + ... + 157181018.

It is an arithmetic number, because the mean of its divisors is an integer number (607360455360).

Almost surely, 2^{20434034311430} is an apocalyptic number.

20434034311430 is a deficient number, since it is larger than the sum of its proper divisors (18437034831610).

20434034311430 is a wasteful number, since it uses less digits than its factorization.

20434034311430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138813.

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 20434034311430 its reverse (3411343043402), we get a palindrome (23845377354832).

The spelling of 20434034311430 in words is "twenty trillion, four hundred thirty-four billion, thirty-four million, three hundred eleven thousand, four hundred thirty".