2312011121000 has 128 divisors (see below), whose sum is σ = 6202738114560. Its totient is φ = 790156224000.

The previous prime is 2312011120963. The next prime is 2312011121023. The reversal of 2312011121000 is 1211102132.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1663385 + ... + 2718615.

It is an arithmetic number, because the mean of its divisors is an integer number (48458891520).

Almost surely, 2^{2312011121000} is an apocalyptic number.

2312011121000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2312011121000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3101369057280).

2312011121000 is an abundant number, since it is smaller than the sum of its proper divisors (3890726993560).

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

2312011121000 is a wasteful number, since it uses less digits than its factorization.

2312011121000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055572 (or 1055558 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 2312011121000 its reverse (1211102132), we get a palindrome (2313222223132).

The spelling of 2312011121000 in words is "two trillion, three hundred twelve billion, eleven million, one hundred twenty-one thousand".