31143541225204 has 6 divisors (see below), whose sum is σ = 54501197144114. Its totient is φ = 15571770612600.

The previous prime is 31143541225187. The next prime is 31143541225217. The reversal of 31143541225204 is 40252214534113.

It can be written as a sum of positive squares in only one way, i.e., 28801576224100 + 2341965001104 = 5366710^2 + 1530348^2 .

It is a super-4 number, since 4×31143541225204⁴ (a number of 55 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3892942653147 + ... + 3892942653154.

Almost surely, 2^{31143541225204} is an apocalyptic number.

It is an amenable number.

31143541225204 is a deficient number, since it is larger than the sum of its proper divisors (23357655918910).

31143541225204 is a wasteful number, since it uses less digits than its factorization.

31143541225204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7785885306305 (or 7785885306303 counting only the distinct ones).

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

Adding to 31143541225204 its reverse (40252214534113), we get a palindrome (71395755759317).

The spelling of 31143541225204 in words is "thirty-one trillion, one hundred forty-three billion, five hundred forty-one million, two hundred twenty-five thousand, two hundred four".