211431413002 has 4 divisors (see below), whose sum is σ = 317147119506. Its totient is φ = 105715706500.

The previous prime is 211431412987. The next prime is 211431413009. The reversal of 211431413002 is 200314134112.

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., 211306621761 + 124791241 = 459681^2 + 11171^2 .

It is not an unprimeable number, because it can be changed into a prime (211431413009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52857853249 + ... + 52857853252.

Almost surely, 2^211431413002 is an apocalyptic number.

211431413002 is a deficient number, since it is larger than the sum of its proper divisors (105715706504).

211431413002 is a wasteful number, since it uses less digits than its factorization.

211431413002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105715706503.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 211431413002 its reverse (200314134112), we get a palindrome (411745547114).

The spelling of 211431413002 in words is "two hundred eleven billion, four hundred thirty-one million, four hundred thirteen thousand, two".