20120421034 has 8 divisors (see below), whose sum is σ = 34492150368. Its totient is φ = 8623037580.

The previous prime is 20120420993. The next prime is 20120421059. The reversal of 20120421034 is 43012402102.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 718586452 + ... + 718586479.

It is an arithmetic number, because the mean of its divisors is an integer number (4311518796).

Almost surely, 2^20120421034 is an apocalyptic number.

20120421034 is a deficient number, since it is larger than the sum of its proper divisors (14371729334).

20120421034 is a wasteful number, since it uses less digits than its factorization.

20120421034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1437172940.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 20120421034 its reverse (43012402102), we get a palindrome (63132823136).

The spelling of 20120421034 in words is "twenty billion, one hundred twenty million, four hundred twenty-one thousand, thirty-four".