213141440402 has 16 divisors (see below), whose sum is σ = 348823534752. Its totient is φ = 96869519520.

The previous prime is 213141440371. The next prime is 213141440417. The reversal of 213141440402 is 204044141312.

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, 478403 + ... + 809414.

It is an arithmetic number, because the mean of its divisors is an integer number (21801470922).

Almost surely, 2^213141440402 is an apocalyptic number.

213141440402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

213141440402 is a deficient number, since it is larger than the sum of its proper divisors (135682094350).

213141440402 is a wasteful number, since it uses less digits than its factorization.

213141440402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295353.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 213141440402 its reverse (204044141312), we get a palindrome (417185581714).

The spelling of 213141440402 in words is "two hundred thirteen billion, one hundred forty-one million, four hundred forty thousand, four hundred two".