20434312013404 has 12 divisors (see below), whose sum is σ = 35762091564024. Its totient is φ = 10216571566544.

The previous prime is 20434312013389. The next prime is 20434312013471. The reversal of 20434312013404 is 40431021343402.

It is a super-2 number, since 2×20434312013404² (a number of 27 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 3 ways as a sum of consecutive naturals, for example, 146031367 + ... + 146171230.

It is an arithmetic number, because the mean of its divisors is an integer number (2980174297002).

Almost surely, 2^{20434312013404} is an apocalyptic number.

It is an amenable number.

20434312013404 is a deficient number, since it is larger than the sum of its proper divisors (15327779550620).

20434312013404 is a wasteful number, since it uses less digits than its factorization.

20434312013404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292220084 (or 292220082 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 20434312013404 its reverse (40431021343402), we get a palindrome (60865333356806).

The spelling of 20434312013404 in words is "twenty trillion, four hundred thirty-four billion, three hundred twelve million, thirteen thousand, four hundred four".