31042443300 has 144 divisors (see below), whose sum is σ = 98393702400. Its totient is φ = 7493763200.

The previous prime is 31042443259. The next prime is 31042443301. The reversal of 31042443300 is 334424013.

It is not an unprimeable number, because it can be changed into a prime (31042443301) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 769021 + ... + 808379.

It is an arithmetic number, because the mean of its divisors is an integer number (683289600).

Almost surely, 2^31042443300 is an apocalyptic number.

31042443300 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31042443300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49196851200).

31042443300 is an abundant number, since it is smaller than the sum of its proper divisors (67351259100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31042443300 is a wasteful number, since it uses less digits than its factorization.

31042443300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39626 (or 39619 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 31042443300 its reverse (334424013), we get a palindrome (31376867313).

The spelling of 31042443300 in words is "thirty-one billion, forty-two million, four hundred forty-three thousand, three hundred".