201031425 has 72 divisors (see below), whose sum is σ = 415638080. Its totient is φ = 90979200.

The previous prime is 201031403. The next prime is 201031429. The reversal of 201031425 is 524130102.

It is not a de Polignac number, because 201031425 - 2⁷ = 201031297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201031398 and 201031407.

It is not an unprimeable number, because it can be changed into a prime (201031429) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 171090 + ... + 172260.

Almost surely, 2^201031425 is an apocalyptic number.

201031425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

201031425 is an abundant number, since it is smaller than the sum of its proper divisors (214606655).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201031425 is a wasteful number, since it uses less digits than its factorization.

201031425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1303 (or 1295 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 201031425 is about 14178.5551097423. Note that the first 3 decimals coincide. The cubic root of 201031425 is about 585.8071260867.

Adding to 201031425 its reverse (524130102), we get a palindrome (725161527).

It can be divided in two parts, 20103 and 1425, that added together give a triangular number (21528 = T₂₀₇).

The spelling of 201031425 in words is "two hundred one million, thirty-one thousand, four hundred twenty-five".