212052251623 has 2 divisors, whose sum is σ = 212052251624. Its totient is φ = 212052251622.

The previous prime is 212052251611. The next prime is 212052251657. The reversal of 212052251623 is 326152250212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212052251623 - 2²⁹ = 211515380711 is a prime.

It is a super-2 number, since 2×212052251623² (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 (212052251123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106026125811 + 106026125812.

It is an arithmetic number, because the mean of its divisors is an integer number (106026125812).

Almost surely, 2^212052251623 is an apocalyptic number.

212052251623 is a deficient number, since it is larger than the sum of its proper divisors (1).

212052251623 is an equidigital number, since it uses as much as digits as its factorization.

212052251623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 212052251623 in words is "two hundred twelve billion, fifty-two million, two hundred fifty-one thousand, six hundred twenty-three".