20120672126 has 4 divisors (see below), whose sum is σ = 30181008192. Its totient is φ = 10060336062.

The previous prime is 20120672087. The next prime is 20120672147. The reversal of 20120672126 is 62127602102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62127602102 = 2 ⋅31063801051.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5030168030 + ... + 5030168033.

It is an arithmetic number, because the mean of its divisors is an integer number (7545252048).

Almost surely, 2^20120672126 is an apocalyptic number.

20120672126 is a deficient number, since it is larger than the sum of its proper divisors (10060336066).

20120672126 is a wasteful number, since it uses less digits than its factorization.

20120672126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10060336065.

The product of its (nonzero) digits is 4032, while the sum is 29.

The spelling of 20120672126 in words is "twenty billion, one hundred twenty million, six hundred seventy-two thousand, one hundred twenty-six".