2111220303031 has 8 divisors (see below), whose sum is σ = 2413652660640. Its totient is φ = 1808995309728.

The previous prime is 2111220302999. The next prime is 2111220303041. The reversal of 2111220303031 is 1303030221112.

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 2111220303031 - 2⁵ = 2111220302999 is a prime.

It is a super-2 number, since 2×2111220303031² (a number of 25 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 (2111220303041) 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, 51819256 + ... + 51859981.

It is an arithmetic number, because the mean of its divisors is an integer number (301706582580).

Almost surely, 2^{2111220303031} is an apocalyptic number.

2111220303031 is a deficient number, since it is larger than the sum of its proper divisors (302432357609).

2111220303031 is a wasteful number, since it uses less digits than its factorization.

2111220303031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103682153.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 2111220303031 its reverse (1303030221112), we get a palindrome (3414250524143).

The spelling of 2111220303031 in words is "two trillion, one hundred eleven billion, two hundred twenty million, three hundred three thousand, thirty-one".