2031042121 has 8 divisors (see below), whose sum is σ = 2057366304. Its totient is φ = 2004762240.

The previous prime is 2031042119. The next prime is 2031042131. The reversal of 2031042121 is 1212401302.

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 2031042121 - 2¹ = 2031042119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2031042095 and 2031042104.

It is not an unprimeable number, because it can be changed into a prime (2031042131) 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, 86745 + ... + 107641.

It is an arithmetic number, because the mean of its divisors is an integer number (257170788).

Almost surely, 2^2031042121 is an apocalyptic number.

It is an amenable number.

2031042121 is a deficient number, since it is larger than the sum of its proper divisors (26324183).

2031042121 is a wasteful number, since it uses less digits than its factorization.

2031042121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22151.

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

The square root of 2031042121 is about 45067.0846738504. The cubic root of 2031042121 is about 1266.4060503139.

Adding to 2031042121 its reverse (1212401302), we get a palindrome (3243443423).

The spelling of 2031042121 in words is "two billion, thirty-one million, forty-two thousand, one hundred twenty-one".