31003442030 has 32 divisors (see below), whose sum is σ = 61111024128. Its totient is φ = 11231101600.

The previous prime is 31003441949. The next prime is 31003442051. The reversal of 31003442030 is 3024430013.

It is a super-2 number, since 2×31003442030² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31003441993 and 31003442011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 506906 + ... + 564765.

It is an arithmetic number, because the mean of its divisors is an integer number (1909719504).

Almost surely, 2^31003442030 is an apocalyptic number.

31003442030 is a deficient number, since it is larger than the sum of its proper divisors (30107582098).

31003442030 is a wasteful number, since it uses less digits than its factorization.

31003442030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071952.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 31003442030 its reverse (3024430013), we get a palindrome (34027872043).

The spelling of 31003442030 in words is "thirty-one billion, three million, four hundred forty-two thousand, thirty".