31425436441 has 16 divisors (see below), whose sum is σ = 37820914560. Its totient is φ = 25507681920.

The previous prime is 31425436421. The next prime is 31425436447. The reversal of 31425436441 is 14463452413.

It is not a de Polignac number, because 31425436441 - 2⁵ = 31425436409 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31425436441.

It is not an unprimeable number, because it can be changed into a prime (31425436447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 276255 + ... + 373051.

It is an arithmetic number, because the mean of its divisors is an integer number (2363807160).

Almost surely, 2^31425436441 is an apocalyptic number.

It is an amenable number.

31425436441 is a deficient number, since it is larger than the sum of its proper divisors (6395478119).

31425436441 is a wasteful number, since it uses less digits than its factorization.

31425436441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99264.

The product of its digits is 138240, while the sum is 37.

Adding to 31425436441 its reverse (14463452413), we get a palindrome (45888888854).

The spelling of 31425436441 in words is "thirty-one billion, four hundred twenty-five million, four hundred thirty-six thousand, four hundred forty-one".