31450143512404 has 12 divisors (see below), whose sum is σ = 55037993600128. Its totient is φ = 15725002483800.

The previous prime is 31450143512387. The next prime is 31450143512407. The reversal of 31450143512404 is 40421534105413.

It is a happy number.

It is a super-2 number, since 2×31450143512404² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31450143512407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16289802 + ... + 18117889.

Almost surely, 2^{31450143512404} is an apocalyptic number.

It is an amenable number.

31450143512404 is a deficient number, since it is larger than the sum of its proper divisors (23587850087724).

31450143512404 is a wasteful number, since it uses less digits than its factorization.

31450143512404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34636206 (or 34636204 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

Adding to 31450143512404 its reverse (40421534105413), we get a palindrome (71871677617817).

The spelling of 31450143512404 in words is "thirty-one trillion, four hundred fifty billion, one hundred forty-three million, five hundred twelve thousand, four hundred four".