152120530421 has 2 divisors, whose sum is σ = 152120530422. Its totient is φ = 152120530420.

The previous prime is 152120530361. The next prime is 152120530439. The reversal of 152120530421 is 124035021251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114876934225 + 37243596196 = 338935^2 + 192986^2 .

It is a cyclic number.

It is not a de Polignac number, because 152120530421 - 2¹⁴ = 152120514037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (152120530451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76060265210 + 76060265211.

It is an arithmetic number, because the mean of its divisors is an integer number (76060265211).

Almost surely, 2^152120530421 is an apocalyptic number.

It is an amenable number.

152120530421 is a deficient number, since it is larger than the sum of its proper divisors (1).

152120530421 is an equidigital number, since it uses as much as digits as its factorization.

152120530421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 152120530421 its reverse (124035021251), we get a palindrome (276155551672).

The spelling of 152120530421 in words is "one hundred fifty-two billion, one hundred twenty million, five hundred thirty thousand, four hundred twenty-one".