31423214100 has 144 divisors (see below), whose sum is σ = 94993920000. Its totient is φ = 8004796800.

The previous prime is 31423214093. The next prime is 31423214143. The reversal of 31423214100 is 141232413.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6283401 + ... + 6288399.

It is an arithmetic number, because the mean of its divisors is an integer number (659680000).

Almost surely, 2^31423214100 is an apocalyptic number.

31423214100 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 31423214100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47496960000).

31423214100 is an abundant number, since it is smaller than the sum of its proper divisors (63570705900).

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

31423214100 is a wasteful number, since it uses less digits than its factorization.

31423214100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5950 (or 5943 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 31423214100 its reverse (141232413), we get a palindrome (31564446513).

The spelling of 31423214100 in words is "thirty-one billion, four hundred twenty-three million, two hundred fourteen thousand, one hundred".