32121013031 has 16 divisors (see below), whose sum is σ = 33658178400.
Its totient is φ = 30613137408.
The previous prime is 32121013007. The next prime is 32121013039. The reversal of 32121013031 is 13031012123.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-32121013031 is a prime.
It is a super-2 number, since 2×321210130312 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (32121013039) 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, 3116735 + ... + 3127023.
It is an arithmetic number, because the mean of its divisors is an integer number (2103636150).
Almost surely, 232121013031 is an apocalyptic number.
32121013031 is a deficient number, since it is larger than the sum of its proper divisors (1537165369).
32121013031 is a wasteful number, since it uses less digits than its factorization.
32121013031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11698.
The product of its (nonzero) digits is 108, while the sum is 17.
Adding to 32121013031 its reverse (13031012123), we get a palindrome (45152025154).
The spelling of 32121013031 in words is "thirty-two billion, one hundred twenty-one million, thirteen thousand, thirty-one".