31219200044 has 24 divisors (see below), whose sum is σ = 59192633808. Its totient is φ = 14349726720.

The previous prime is 31219200037. The next prime is 31219200073. The reversal of 31219200044 is 44000291213.

It is a junction number, because it is equal to n+sod(n) for n = 31219199986 and 31219200022.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5335517 + ... + 5341364.

It is an arithmetic number, because the mean of its divisors is an integer number (2466359742).

Almost surely, 2^31219200044 is an apocalyptic number.

31219200044 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

31219200044 is a deficient number, since it is larger than the sum of its proper divisors (27973433764).

31219200044 is a wasteful number, since it uses less digits than its factorization.

31219200044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10676945 (or 10676943 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 31219200044 its reverse (44000291213), we get a palindrome (75219491257).

The spelling of 31219200044 in words is "thirty-one billion, two hundred nineteen million, two hundred thousand, forty-four".