31421301221404 has 12 divisors (see below), whose sum is σ = 54987325649928. Its totient is φ = 15710636750000.

The previous prime is 31421301221381. The next prime is 31421301221491. The reversal of 31421301221404 is 40412210312413.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2958579 + ... + 8461429.

It is an arithmetic number, because the mean of its divisors is an integer number (4582277137494).

Almost surely, 2^{31421301221404} is an apocalyptic number.

It is an amenable number.

31421301221404 is a deficient number, since it is larger than the sum of its proper divisors (23566024428524).

31421301221404 is a wasteful number, since it uses less digits than its factorization.

31421301221404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6930356 (or 6930354 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 31421301221404 its reverse (40412210312413), we get a palindrome (71833511533817).

The spelling of 31421301221404 in words is "thirty-one trillion, four hundred twenty-one billion, three hundred one million, two hundred twenty-one thousand, four hundred four".