2131311033123 has 8 divisors (see below), whose sum is σ = 2843173916688. Its totient is φ = 1420161085824.

The previous prime is 2131311033121. The next prime is 2131311033133. The reversal of 2131311033123 is 3213301131312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2131311033123 - 2¹ = 2131311033121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2131311033093 and 2131311033102.

It is not an unprimeable number, because it can be changed into a prime (2131311033121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178227090 + ... + 178239047.

It is an arithmetic number, because the mean of its divisors is an integer number (355396739586).

Almost surely, 2^{2131311033123} is an apocalyptic number.

2131311033123 is a deficient number, since it is larger than the sum of its proper divisors (711862883565).

2131311033123 is a wasteful number, since it uses less digits than its factorization.

2131311033123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356468133.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 2131311033123 its reverse (3213301131312), we get a palindrome (5344612164435).

The spelling of 2131311033123 in words is "two trillion, one hundred thirty-one billion, three hundred eleven million, thirty-three thousand, one hundred twenty-three".