20131303213012 has 24 divisors (see below), whose sum is σ = 35263482036104. Its totient is φ = 10056026800512.

The previous prime is 20131303213003. The next prime is 20131303213061. The reversal of 20131303213012 is 21031230313102.

It can be written as a sum of positive squares in 4 ways, for example, as 285739426116 + 19845563786896 = 534546^2 + 4454836^2 .

It is a super-2 number, since 2×20131303213012² (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 7 ways as a sum of consecutive naturals, for example, 18881518 + ... + 19919194.

Almost surely, 2^{20131303213012} is an apocalyptic number.

It is an amenable number.

20131303213012 is a deficient number, since it is larger than the sum of its proper divisors (15132178823092).

20131303213012 is a wasteful number, since it uses less digits than its factorization.

20131303213012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042315 (or 1042313 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 20131303213012 its reverse (21031230313102), we get a palindrome (41162533526114).

The spelling of 20131303213012 in words is "twenty trillion, one hundred thirty-one billion, three hundred three million, two hundred thirteen thousand, twelve".