201652423451 has 2 divisors, whose sum is σ = 201652423452. Its totient is φ = 201652423450.

The previous prime is 201652423393. The next prime is 201652423499. The reversal of 201652423451 is 154324256102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201652423451 - 2²² = 201648229147 is a prime.

It is a super-2 number, since 2×201652423451² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (201652428451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100826211725 + 100826211726.

It is an arithmetic number, because the mean of its divisors is an integer number (100826211726).

Almost surely, 2^201652423451 is an apocalyptic number.

201652423451 is a deficient number, since it is larger than the sum of its proper divisors (1).

201652423451 is an equidigital number, since it uses as much as digits as its factorization.

201652423451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 201652423451 its reverse (154324256102), we get a palindrome (355976679553).

The spelling of 201652423451 in words is "two hundred one billion, six hundred fifty-two million, four hundred twenty-three thousand, four hundred fifty-one".