31103142142432 has 24 divisors (see below), whose sum is σ = 61501709845800. Its totient is φ = 15483660276864.

The previous prime is 31103142142427. The next prime is 31103142142451. The reversal of 31103142142432 is 23424124130113.

It is a happy number.

It is a super-2 number, since 2×31103142142432² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31103142142394 and 31103142142403.

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, 2122204882 + ... + 2122219537.

It is an arithmetic number, because the mean of its divisors is an integer number (2562571243575).

Almost surely, 2^{31103142142432} is an apocalyptic number.

31103142142432 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31103142142432 is a deficient number, since it is larger than the sum of its proper divisors (30398567703368).

31103142142432 is a wasteful number, since it uses less digits than its factorization.

31103142142432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4244424658 (or 4244424650 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 31103142142432 its reverse (23424124130113), we get a palindrome (54527266272545).

The spelling of 31103142142432 in words is "thirty-one trillion, one hundred three billion, one hundred forty-two million, one hundred forty-two thousand, four hundred thirty-two".