31041141331440 has 40 divisors (see below), whose sum is σ = 96227538128208. Its totient is φ = 8277637688320.

The previous prime is 31041141331373. The next prime is 31041141331483. The reversal of 31041141331440 is 4413314114013.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 31041141331398 and 31041141331407.

It is a congruent number.

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, 64669044201 + ... + 64669044680.

Almost surely, 2^{31041141331440} is an apocalyptic number.

31041141331440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31041141331440 is an abundant number, since it is smaller than the sum of its proper divisors (65186396796768).

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

31041141331440 is a wasteful number, since it uses less digits than its factorization.

31041141331440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129338088897 (or 129338088891 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

Adding to 31041141331440 its reverse (4413314114013), we get a palindrome (35454455445453).

The spelling of 31041141331440 in words is "thirty-one trillion, forty-one billion, one hundred forty-one million, three hundred thirty-one thousand, four hundred forty".