1000020431013 has 16 divisors (see below), whose sum is σ = 1352675261952. Its totient is φ = 657030374000.

The previous prime is 1000020430993. The next prime is 1000020431023. The reversal of 1000020431013 is 3101340200001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1000020431013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1000020430983 and 1000020431001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000020431023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 388383 + ... + 1466588.

It is an arithmetic number, because the mean of its divisors is an integer number (84542203872).

Almost surely, 2^{1000020431013} is an apocalyptic number.

It is an amenable number.

1000020431013 is a deficient number, since it is larger than the sum of its proper divisors (352654830939).

1000020431013 is a wasteful number, since it uses less digits than its factorization.

1000020431013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1857576.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 1000020431013 its reverse (3101340200001), we get a palindrome (4101360631014).

The spelling of 1000020431013 in words is "one trillion, twenty million, four hundred thirty-one thousand, thirteen".