2120477105731 has 8 divisors (see below), whose sum is σ = 2123253302544. Its totient is φ = 2117702627040.

The previous prime is 2120477105723. The next prime is 2120477105767. The reversal of 2120477105731 is 1375017740212.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2120477105731 - 2³ = 2120477105723 is a prime.

It is a super-2 number, since 2×2120477105731² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120477105701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2049801 + ... + 2905621.

It is an arithmetic number, because the mean of its divisors is an integer number (265406662818).

Almost surely, 2^{2120477105731} is an apocalyptic number.

2120477105731 is a deficient number, since it is larger than the sum of its proper divisors (2776196813).

2120477105731 is a wasteful number, since it uses less digits than its factorization.

2120477105731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859061.

The product of its (nonzero) digits is 82320, while the sum is 40.

The spelling of 2120477105731 in words is "two trillion, one hundred twenty billion, four hundred seventy-seven million, one hundred five thousand, seven hundred thirty-one".