201532123025 has 12 divisors (see below), whose sum is σ = 249905938032. Its totient is φ = 161221759440.

The previous prime is 201532123019. The next prime is 201532123033. The reversal of 201532123025 is 520321235102.

It is a happy number.

It is not a de Polignac number, because 201532123025 - 2²⁰ = 201531074449 is a prime.

It is a super-2 number, since 2×201532123025² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201532122985 and 201532123003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1381214 + ... + 1520136.

It is an arithmetic number, because the mean of its divisors is an integer number (20825494836).

Almost surely, 2^201532123025 is an apocalyptic number.

201532123025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

201532123025 is a deficient number, since it is larger than the sum of its proper divisors (48373815007).

201532123025 is a wasteful number, since it uses less digits than its factorization.

201532123025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196960 (or 196955 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 201532123025 its reverse (520321235102), we get a palindrome (721853358127).

The spelling of 201532123025 in words is "two hundred one billion, five hundred thirty-two million, one hundred twenty-three thousand, twenty-five".