31402200121 has 8 divisors (see below), whose sum is σ = 31455132800. Its totient is φ = 31349295648.

The previous prime is 31402200119. The next prime is 31402200149. The reversal of 31402200121 is 12100220413.

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 31402200121 - 2¹ = 31402200119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31402200095 and 31402200104.

It is not an unprimeable number, because it can be changed into a prime (31402200421) 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, 3957460 + ... + 3965386.

It is an arithmetic number, because the mean of its divisors is an integer number (3931891600).

Almost surely, 2^31402200121 is an apocalyptic number.

It is an amenable number.

31402200121 is a deficient number, since it is larger than the sum of its proper divisors (52932679).

31402200121 is an equidigital number, since it uses as much as digits as its factorization.

31402200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14103.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 31402200121 its reverse (12100220413), we get a palindrome (43502420534).

The spelling of 31402200121 in words is "thirty-one billion, four hundred two million, two hundred thousand, one hundred twenty-one".