20143602413 has 12 divisors (see below), whose sum is σ = 23443747740. Its totient is φ = 17235166080.

The previous prime is 20143602397. The next prime is 20143602431. The reversal of 20143602413 is 31420634102.

It can be written as a sum of positive squares in 2 ways, for example, as 16119349444 + 4024252969 = 126962^2 + 63437^2 .

It is not a de Polignac number, because 20143602413 - 2⁴ = 20143602397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20143602443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4894298 + ... + 4898411.

It is an arithmetic number, because the mean of its divisors is an integer number (1953645645).

Almost surely, 2^20143602413 is an apocalyptic number.

It is an amenable number.

20143602413 is a deficient number, since it is larger than the sum of its proper divisors (3300145327).

20143602413 is a wasteful number, since it uses less digits than its factorization.

20143602413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9792748 (or 9792737 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The spelling of 20143602413 in words is "twenty billion, one hundred forty-three million, six hundred two thousand, four hundred thirteen".