213232999997 has 2 divisors, whose sum is σ = 213232999998. Its totient is φ = 213232999996.

The previous prime is 213232999871. The next prime is 213233000009. The reversal of 213232999997 is 799999232312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 212803225636 + 429774361 = 461306^2 + 20731^2 .

It is a cyclic number.

It is not a de Polignac number, because 213232999997 - 2¹² = 213232995901 is a prime.

It is a super-3 number, since 3×213232999997³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213232999097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106616499998 + 106616499999.

It is an arithmetic number, because the mean of its divisors is an integer number (106616499999).

Almost surely, 2^213232999997 is an apocalyptic number.

It is an amenable number.

213232999997 is a deficient number, since it is larger than the sum of its proper divisors (1).

213232999997 is an equidigital number, since it uses as much as digits as its factorization.

213232999997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29760696, while the sum is 65.

The spelling of 213232999997 in words is "two hundred thirteen billion, two hundred thirty-two million, nine hundred ninety-nine thousand, nine hundred ninety-seven".