12021152623 has 2 divisors, whose sum is σ = 12021152624. Its totient is φ = 12021152622.

The previous prime is 12021152621. The next prime is 12021152677. The reversal of 12021152623 is 32625112021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12021152623 - 2¹ = 12021152621 is a prime.

It is a super-2 number, since 2×12021152623² (a number of 21 digits) contains 22 as substring.

Together with 12021152621, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12021152621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010576311 + 6010576312.

It is an arithmetic number, because the mean of its divisors is an integer number (6010576312).

Almost surely, 2^12021152623 is an apocalyptic number.

12021152623 is a deficient number, since it is larger than the sum of its proper divisors (1).

12021152623 is an equidigital number, since it uses as much as digits as its factorization.

12021152623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 12021152623 its reverse (32625112021), we get a palindrome (44646264644).

The spelling of 12021152623 in words is "twelve billion, twenty-one million, one hundred fifty-two thousand, six hundred twenty-three".