1121211230031 has 20 divisors (see below), whose sum is σ = 1675304895000. Its totient is φ = 747291576816.

The previous prime is 1121211230023. The next prime is 1121211230059. The reversal of 1121211230031 is 1300321121211.

1121211230031 is a `hidden beast` number, since 1 + 121 + 211 + 2 + 300 + 31 = 666.

It is not a de Polignac number, because 1121211230031 - 2³ = 1121211230023 is a prime.

It is a super-2 number, since 2×1121211230031² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1121211229986 and 1121211230013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121211230081) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1356456 + ... + 2020493.

It is an arithmetic number, because the mean of its divisors is an integer number (83765244750).

Almost surely, 2^{1121211230031} is an apocalyptic number.

1121211230031 is a deficient number, since it is larger than the sum of its proper divisors (554093664969).

1121211230031 is an equidigital number, since it uses as much as digits as its factorization.

1121211230031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3381060 (or 3381051 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1121211230031 its reverse (1300321121211), we get a palindrome (2421532351242).

The spelling of 1121211230031 in words is "one trillion, one hundred twenty-one billion, two hundred eleven million, two hundred thirty thousand, thirty-one".