31444123233242 has 32 divisors (see below), whose sum is σ = 49106637392592. Its totient is φ = 15086940954624.

The previous prime is 31444123233157. The next prime is 31444123233247. The reversal of 31444123233242 is 24233232144413.

It can be written as a sum of positive squares in 8 ways, for example, as 29376822761521 + 2067300471721 = 5420039^2 + 1437811^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31444123233196 and 31444123233205.

It is not an unprimeable number, because it can be changed into a prime (31444123233247) 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, 139653458 + ... + 139878434.

Almost surely, 2^{31444123233242} is an apocalyptic number.

31444123233242 is a deficient number, since it is larger than the sum of its proper divisors (17662514159350).

31444123233242 is a wasteful number, since it uses less digits than its factorization.

31444123233242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250962.

The product of its digits is 331776, while the sum is 38.

Adding to 31444123233242 its reverse (24233232144413), we get a palindrome (55677355377655).

The spelling of 31444123233242 in words is "thirty-one trillion, four hundred forty-four billion, one hundred twenty-three million, two hundred thirty-three thousand, two hundred forty-two".