212240003431 has 2 divisors, whose sum is σ = 212240003432. Its totient is φ = 212240003430.

The previous prime is 212240003399. The next prime is 212240003449. The reversal of 212240003431 is 134300042212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212240003431 - 2⁵ = 212240003399 is a prime.

It is a super-2 number, since 2×212240003431² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212240003471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106120001715 + 106120001716.

It is an arithmetic number, because the mean of its divisors is an integer number (106120001716).

Almost surely, 2^212240003431 is an apocalyptic number.

212240003431 is a deficient number, since it is larger than the sum of its proper divisors (1).

212240003431 is an equidigital number, since it uses as much as digits as its factorization.

212240003431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 212240003431 its reverse (134300042212), we get a palindrome (346540045643).

The spelling of 212240003431 in words is "two hundred twelve billion, two hundred forty million, three thousand, four hundred thirty-one".