31445141200 has 120 divisors (see below), whose sum is σ = 83097377856. Its totient is φ = 11434403200.

The previous prime is 31445141149. The next prime is 31445141201. The reversal of 31445141200 is 214154413.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31445141201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 502869 + ... + 561931.

Almost surely, 2^31445141200 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31445141200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41548688928).

31445141200 is an abundant number, since it is smaller than the sum of its proper divisors (51652236656).

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

31445141200 is a wasteful number, since it uses less digits than its factorization.

31445141200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59114 (or 59081 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 31445141200 its reverse (214154413), we get a palindrome (31659295613).

The spelling of 31445141200 in words is "thirty-one billion, four hundred forty-five million, one hundred forty-one thousand, two hundred".