2002143631 has 2 divisors, whose sum is σ = 2002143632. Its totient is φ = 2002143630.

The previous prime is 2002143617. The next prime is 2002143641. The reversal of 2002143631 is 1363412002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2002143631 - 2¹³ = 2002135439 is a prime.

It is a super-2 number, since 2×2002143631² = 8017158238307728322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2002143641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001071815 + 1001071816.

It is an arithmetic number, because the mean of its divisors is an integer number (1001071816).

Almost surely, 2^2002143631 is an apocalyptic number.

2002143631 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002143631 is an equidigital number, since it uses as much as digits as its factorization.

2002143631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 2002143631 is about 44745.3196546857. The cubic root of 2002143631 is about 1260.3710234736.

Adding to 2002143631 its reverse (1363412002), we get a palindrome (3365555633).

The spelling of 2002143631 in words is "two billion, two million, one hundred forty-three thousand, six hundred thirty-one".