1121120031 has 32 divisors (see below), whose sum is σ = 1553932800. Its totient is φ = 718502400.

The previous prime is 1121119997. The next prime is 1121120051. The reversal of 1121120031 is 1300211211.

It is not a de Polignac number, because 1121120031 - 2¹⁰ = 1121119007 is a prime.

It is a super-2 number, since 2×1121120031² = 2513820247818881922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1121119989 and 1121120016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121120051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3989611 + ... + 3989891.

It is an arithmetic number, because the mean of its divisors is an integer number (48560400).

Almost surely, 2^1121120031 is an apocalyptic number.

1121120031 is a deficient number, since it is larger than the sum of its proper divisors (432812769).

1121120031 is a wasteful number, since it uses less digits than its factorization.

1121120031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 1121120031 is about 33483.1305436036. The cubic root of 1121120031 is about 1038.8448808940.

Adding to 1121120031 its reverse (1300211211), we get a palindrome (2421331242).

The spelling of 1121120031 in words is "one billion, one hundred twenty-one million, one hundred twenty thousand, thirty-one".