31025125224443 has 12 divisors (see below), whose sum is σ = 36311865615720. Its totient is φ = 26429817449952.

The previous prime is 31025125224427. The next prime is 31025125224449. The reversal of 31025125224443 is 34442252152013.

It is not a de Polignac number, because 31025125224443 - 2⁴ = 31025125224427 is a prime.

It is a super-2 number, since 2×31025125224443² (a number of 28 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 = 31025125224397 and 31025125224406.

It is not an unprimeable number, because it can be changed into a prime (31025125224449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1942218458 + ... + 1942234431.

It is an arithmetic number, because the mean of its divisors is an integer number (3025988801310).

Almost surely, 2^{31025125224443} is an apocalyptic number.

31025125224443 is a deficient number, since it is larger than the sum of its proper divisors (5286740391277).

31025125224443 is a wasteful number, since it uses less digits than its factorization.

31025125224443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3884453066 (or 3884453059 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 38.

Adding to 31025125224443 its reverse (34442252152013), we get a palindrome (65467377376456).

The spelling of 31025125224443 in words is "thirty-one trillion, twenty-five billion, one hundred twenty-five million, two hundred twenty-four thousand, four hundred forty-three".