31003242023 has 16 divisors (see below), whose sum is σ = 35359571520. Its totient is φ = 26929261056.

The previous prime is 31003241977. The next prime is 31003242041. The reversal of 31003242023 is 32024230013.

It is a cyclic number.

It is not a de Polignac number, because 31003242023 - 2¹² = 31003237927 is a prime.

It is a super-2 number, since 2×31003242023² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31003241986 and 31003242004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31003242323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1298033 + ... + 1321701.

It is an arithmetic number, because the mean of its divisors is an integer number (2209973220).

Almost surely, 2^31003242023 is an apocalyptic number.

31003242023 is a deficient number, since it is larger than the sum of its proper divisors (4356329497).

31003242023 is a wasteful number, since it uses less digits than its factorization.

31003242023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29626.

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

Adding to 31003242023 its reverse (32024230013), we get a palindrome (63027472036).

The spelling of 31003242023 in words is "thirty-one billion, three million, two hundred forty-two thousand, twenty-three".