213320131990 has 16 divisors (see below), whose sum is σ = 438829985952. Its totient is φ = 73138330944.

The previous prime is 213320131987. The next prime is 213320131993. The reversal of 213320131990 is 99131023312.

It is an interprime number because it is at equal distance from previous prime (213320131987) and next prime (213320131993).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213320131993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1523715159 + ... + 1523715298.

It is an arithmetic number, because the mean of its divisors is an integer number (27426874122).

Almost surely, 2^213320131990 is an apocalyptic number.

213320131990 is an abundant number, since it is smaller than the sum of its proper divisors (225509853962).

213320131990 is a wasteful number, since it uses less digits than its factorization.

213320131990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3047430471.

The product of its (nonzero) digits is 8748, while the sum is 34.

The spelling of 213320131990 in words is "two hundred thirteen billion, three hundred twenty million, one hundred thirty-one thousand, nine hundred ninety".