31040121003 has 8 divisors (see below), whose sum is σ = 41389136448. Its totient is φ = 20692259784.

The previous prime is 31040120999. The next prime is 31040121019. The reversal of 31040121003 is 30012104013.

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

It is not a de Polignac number, because 31040121003 - 2² = 31040120999 is a prime.

It is a super-2 number, since 2×31040121003² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31040121053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223725 + ... + 334862.

It is an arithmetic number, because the mean of its divisors is an integer number (5173642056).

Almost surely, 2^31040121003 is an apocalyptic number.

31040121003 is a deficient number, since it is larger than the sum of its proper divisors (10349015445).

31040121003 is a wasteful number, since it uses less digits than its factorization.

31040121003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577113.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 31040121003 its reverse (30012104013), we get a palindrome (61052225016).

The spelling of 31040121003 in words is "thirty-one billion, forty million, one hundred twenty-one thousand, three".