213120431431210 has 32 divisors (see below), whose sum is σ = 384491114960400. Its totient is φ = 85053894868992.

The previous prime is 213120431431151. The next prime is 213120431431213. The reversal of 213120431431210 is 12134134021312.

It can be written as a sum of positive squares in 8 ways, for example, as 1089002863809 + 212031428567401 = 1043553^2 + 14561299^2 .

It is not an unprimeable number, because it can be changed into a prime (213120431431213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85960062 + ... + 88404598.

Almost surely, 2^{213120431431210} is an apocalyptic number.

213120431431210 is a deficient number, since it is larger than the sum of its proper divisors (171370683529190).

213120431431210 is a wasteful number, since it uses less digits than its factorization.

213120431431210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2464410.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 213120431431210 its reverse (12134134021312), we get a palindrome (225254565452522).

The spelling of 213120431431210 in words is "two hundred thirteen trillion, one hundred twenty billion, four hundred thirty-one million, four hundred thirty-one thousand, two hundred ten".