2113731573550 has 24 divisors (see below), whose sum is σ = 3972072083616. Its totient is φ = 836776208640.

The previous prime is 2113731573521. The next prime is 2113731573571. The reversal of 2113731573550 is 553751373112.

It is a super-2 number, since 2×2113731573550² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2113731573497 and 2113731573506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 217905622 + ... + 217915321.

It is an arithmetic number, because the mean of its divisors is an integer number (165503003484).

Almost surely, 2^{2113731573550} is an apocalyptic number.

2113731573550 is a deficient number, since it is larger than the sum of its proper divisors (1858340510066).

2113731573550 is a wasteful number, since it uses less digits than its factorization.

2113731573550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435821052 (or 435821047 counting only the distinct ones).

The product of its (nonzero) digits is 330750, while the sum is 43.

The spelling of 2113731573550 in words is "two trillion, one hundred thirteen billion, seven hundred thirty-one million, five hundred seventy-three thousand, five hundred fifty".