123011153 has 8 divisors (see below), whose sum is σ = 128737728. Its totient is φ = 117316144.

The previous prime is 123011143. The next prime is 123011171. The reversal of 123011153 is 351110321.

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 123011153 - 2¹⁶ = 122945617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123011113) 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, 275 + ... + 15687.

It is an arithmetic number, because the mean of its divisors is an integer number (16092216).

Almost surely, 2^123011153 is an apocalyptic number.

It is an amenable number.

123011153 is a deficient number, since it is larger than the sum of its proper divisors (5726575).

123011153 is a wasteful number, since it uses less digits than its factorization.

123011153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15783.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 123011153 is about 11091.0393110835. The cubic root of 123011153 is about 497.3340143051.

Adding to 123011153 its reverse (351110321), we get a palindrome (474121474).

The spelling of 123011153 in words is "one hundred twenty-three million, eleven thousand, one hundred fifty-three".