212030023133 has 4 divisors (see below), whose sum is σ = 212031978528. Its totient is φ = 212028067740.

The previous prime is 212030023129. The next prime is 212030023141. The reversal of 212030023133 is 331320030212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212030023133 - 2² = 212030023129 is a prime.

It is a super-4 number, since 4×212030023133⁴ (a number of 46 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212030023123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 804863 + ... + 1035308.

It is an arithmetic number, because the mean of its divisors is an integer number (53007994632).

Almost surely, 2^212030023133 is an apocalyptic number.

It is an amenable number.

212030023133 is a deficient number, since it is larger than the sum of its proper divisors (1955395).

212030023133 is a wasteful number, since it uses less digits than its factorization.

212030023133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1955394.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 212030023133 its reverse (331320030212), we get a palindrome (543350053345).

The spelling of 212030023133 in words is "two hundred twelve billion, thirty million, twenty-three thousand, one hundred thirty-three".