212811502383 has 6 divisors (see below), whose sum is σ = 307394392344. Its totient is φ = 141874334916.

The previous prime is 212811502369. The next prime is 212811502439. The reversal of 212811502383 is 383205118212.

212811502383 is a `hidden beast` number, since 2 + 128 + 1 + 150 + 2 + 383 = 666.

It is not a de Polignac number, because 212811502383 - 2⁹ = 212811501871 is a prime.

It is a super-2 number, since 2×212811502383² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212811502283) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11822861235 + ... + 11822861252.

It is an arithmetic number, because the mean of its divisors is an integer number (51232398724).

Almost surely, 2^212811502383 is an apocalyptic number.

212811502383 is a deficient number, since it is larger than the sum of its proper divisors (94582889961).

212811502383 is a wasteful number, since it uses less digits than its factorization.

212811502383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23645722493 (or 23645722490 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The spelling of 212811502383 in words is "two hundred twelve billion, eight hundred eleven million, five hundred two thousand, three hundred eighty-three".