20123410021012 has 12 divisors (see below), whose sum is σ = 37287495039060. Its totient is φ = 9469840009856.

The previous prime is 20123410021007. The next prime is 20123410021027. The reversal of 20123410021012 is 21012001432102.

It can be written as a sum of positive squares in 2 ways, for example, as 8253703801476 + 11869706219536 = 2872926^2 + 3445244^2 .

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, 147966250087 + ... + 147966250222.

It is an arithmetic number, because the mean of its divisors is an integer number (3107291253255).

Almost surely, 2^{20123410021012} is an apocalyptic number.

It is an amenable number.

20123410021012 is a deficient number, since it is larger than the sum of its proper divisors (17164085018048).

20123410021012 is a wasteful number, since it uses less digits than its factorization.

20123410021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295932500330 (or 295932500328 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 20123410021012 its reverse (21012001432102), we get a palindrome (41135411453114).

The spelling of 20123410021012 in words is "twenty trillion, one hundred twenty-three billion, four hundred ten million, twenty-one thousand, twelve".