2001311131024 has 20 divisors (see below), whose sum is σ = 4011248604060. Its totient is φ = 966150200960.

The previous prime is 2001311130979. The next prime is 2001311131031. The reversal of 2001311131024 is 4201311131002.

It can be written as a sum of positive squares in 2 ways, for example, as 1530495585424 + 470815545600 = 1237132^2 + 686160^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2001311130992 and 2001311131010.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2156584807 + ... + 2156585734.

It is an arithmetic number, because the mean of its divisors is an integer number (200562430203).

Almost surely, 2^{2001311131024} is an apocalyptic number.

It is an amenable number.

2001311131024 is an abundant number, since it is smaller than the sum of its proper divisors (2009937473036).

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

2001311131024 is a wasteful number, since it uses less digits than its factorization.

2001311131024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4313170578 (or 4313170572 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2001311131024 its reverse (4201311131002), we get a palindrome (6202622262026).

The spelling of 2001311131024 in words is "two trillion, one billion, three hundred eleven million, one hundred thirty-one thousand, twenty-four".