31543325401 has 16 divisors (see below), whose sum is σ = 37672740864. Its totient is φ = 25846473744.

The previous prime is 31543325383. The next prime is 31543325431. The reversal of 31543325401 is 10452334513.

It is not a de Polignac number, because 31543325401 - 2¹³ = 31543317209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31543325431) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1100695 + ... + 1128988.

It is an arithmetic number, because the mean of its divisors is an integer number (2354546304).

Almost surely, 2^31543325401 is an apocalyptic number.

It is an amenable number.

31543325401 is a deficient number, since it is larger than the sum of its proper divisors (6129415463).

31543325401 is a wasteful number, since it uses less digits than its factorization.

31543325401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2229780.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 31543325401 its reverse (10452334513), we get a palindrome (41995659914).

The spelling of 31543325401 in words is "thirty-one billion, five hundred forty-three million, three hundred twenty-five thousand, four hundred one".