31453225440000 has 3240 divisors, whose sum is σ = 135677830658832. Its totient is φ = 6440878080000.

The previous prime is 31453225439927. The next prime is 31453225440019. The reversal of 31453225440000 is 4452235413.

It is an unprimeable number.

It is a polite number, since it can be written in 359 ways as a sum of consecutive naturals, for example, 162970079904 + ... + 162970080096.

Almost surely, 2^{31453225440000} is an apocalyptic number.

31453225440000 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 31453225440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67838915329416).

31453225440000 is an abundant number, since it is smaller than the sum of its proper divisors (104224605218832).

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

31453225440000 is a wasteful number, since it uses less digits than its factorization.

31453225440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313 (or 264 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 31453225440000 its reverse (4452235413), we get a palindrome (31457677675413).

The spelling of 31453225440000 in words is "thirty-one trillion, four hundred fifty-three billion, two hundred twenty-five million, four hundred forty thousand".