211200031402 has 4 divisors (see below), whose sum is σ = 316800047106. Its totient is φ = 105600015700.

The previous prime is 211200031379. The next prime is 211200031487. The reversal of 211200031402 is 204130002112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 208838946121 + 2361085281 = 456989^2 + 48591^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52800007849 + ... + 52800007852.

Almost surely, 2^211200031402 is an apocalyptic number.

211200031402 is a deficient number, since it is larger than the sum of its proper divisors (105600015704).

211200031402 is a wasteful number, since it uses less digits than its factorization.

211200031402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105600015703.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 211200031402 its reverse (204130002112), we get a palindrome (415330033514).

The spelling of 211200031402 in words is "two hundred eleven billion, two hundred million, thirty-one thousand, four hundred two".