123770311092 has 168 divisors, whose sum is σ = 330486720032. Its totient is φ = 40531233600.

The previous prime is 123770311087. The next prime is 123770311099. The reversal of 123770311092 is 290113077321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123770311099) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 105695667 + ... + 105696837.

Almost surely, 2^123770311092 is an apocalyptic number.

123770311092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123770311092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165243360016).

123770311092 is an abundant number, since it is smaller than the sum of its proper divisors (206716408940).

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

123770311092 is a wasteful number, since it uses less digits than its factorization.

123770311092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1801 (or 1784 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The spelling of 123770311092 in words is "one hundred twenty-three billion, seven hundred seventy million, three hundred eleven thousand, ninety-two".