31112042003 has 8 divisors (see below), whose sum is σ = 35638739808. Its totient is φ = 26605874304.

The previous prime is 31112041981. The next prime is 31112042011. The reversal of 31112042003 is 30024021113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31112042003 - 2²² = 31107847699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31112042503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5129276 + ... + 5135337.

It is an arithmetic number, because the mean of its divisors is an integer number (4454842476).

Almost surely, 2^31112042003 is an apocalyptic number.

31112042003 is a deficient number, since it is larger than the sum of its proper divisors (4526697805).

31112042003 is a wasteful number, since it uses less digits than its factorization.

31112042003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10265053.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 31112042003 its reverse (30024021113), we get a palindrome (61136063116).

The spelling of 31112042003 in words is "thirty-one billion, one hundred twelve million, forty-two thousand, three".