2111231031000 has 256 divisors, whose sum is σ = 8107128207360. Its totient is φ = 445446489600.

The previous prime is 2111231030981. The next prime is 2111231031043. The reversal of 2111231031000 is 1301321112.

It is a happy number.

It is a super-2 number, since 2×2111231031000² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3593724 + ... + 4139723.

It is an arithmetic number, because the mean of its divisors is an integer number (31668469560).

Almost surely, 2^{2111231031000} is an apocalyptic number.

2111231031000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111231031000 is an abundant number, since it is smaller than the sum of its proper divisors (5995897176360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2111231031000 is a wasteful number, since it uses less digits than its factorization.

2111231031000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7733491 (or 7733477 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 2111231031000 its reverse (1301321112), we get a palindrome (2112532352112).

The spelling of 2111231031000 in words is "two trillion, one hundred eleven billion, two hundred thirty-one million, thirty-one thousand".