123994037771373 has 96 divisors (see below), whose sum is σ = 222195887441920. Its totient is φ = 60021988329600.

The previous prime is 123994037771321. The next prime is 123994037771381. The reversal of 123994037771373 is 373177730499321.

It is not a de Polignac number, because 123994037771373 - 2⁶ = 123994037771309 is a prime.

It is a super-3 number, since 3×123994037771373³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123994037771173) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 18106465 + ... + 23996502.

Almost surely, 2^{123994037771373} is an apocalyptic number.

It is an amenable number.

123994037771373 is a deficient number, since it is larger than the sum of its proper divisors (98201849670547).

123994037771373 is a wasteful number, since it uses less digits than its factorization.

123994037771373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42103079 (or 42103068 counting only the distinct ones).

The product of its (nonzero) digits is 126023688, while the sum is 66.

It can be divided in two parts, 12399403 and 7771373, that added together give a triangular number (20170776 = T₆₃₅₁).

The spelling of 123994037771373 in words is "one hundred twenty-three trillion, nine hundred ninety-four billion, thirty-seven million, seven hundred seventy-one thousand, three hundred seventy-three".