31421002211140 has 24 divisors (see below), whose sum is σ = 65987097910272. Its totient is φ = 12567830738400.

The previous prime is 31421002211117. The next prime is 31421002211293. The reversal of 31421002211140 is 4111220012413.

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, 35182084 + ... + 36064123.

It is an arithmetic number, because the mean of its divisors is an integer number (2749462412928).

Almost surely, 2^{31421002211140} is an apocalyptic number.

It is an amenable number.

31421002211140 is an abundant number, since it is smaller than the sum of its proper divisors (34566095699132).

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

31421002211140 is a wasteful number, since it uses less digits than its factorization.

31421002211140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71268267 (or 71268265 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 31421002211140 its reverse (4111220012413), we get a palindrome (35532222223553).

The spelling of 31421002211140 in words is "thirty-one trillion, four hundred twenty-one billion, two million, two hundred eleven thousand, one hundred forty".