211143143402 has 64 divisors (see below), whose sum is σ = 352587561984. Its totient is φ = 94386539520.

The previous prime is 211143143401. The next prime is 211143143489. The reversal of 211143143402 is 204341341112.

It is a super-2 number, since 2×211143143402² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211143143401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13726988 + ... + 13742360.

It is an arithmetic number, because the mean of its divisors is an integer number (5509180656).

Almost surely, 2^211143143402 is an apocalyptic number.

211143143402 is a deficient number, since it is larger than the sum of its proper divisors (141444418582).

211143143402 is a wasteful number, since it uses less digits than its factorization.

211143143402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15663.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 211143143402 its reverse (204341341112), we get a palindrome (415484484514).

The spelling of 211143143402 in words is "two hundred eleven billion, one hundred forty-three million, one hundred forty-three thousand, four hundred two".