123154154011 has 8 divisors (see below), whose sum is σ = 140768421120. Its totient is φ = 105545091048.

The previous prime is 123154153981. The next prime is 123154154021. The reversal of 123154154011 is 110451451321.

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 123154154011 - 2¹³ = 123154145819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123154154021) 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, 1250191 + ... + 1345096.

It is an arithmetic number, because the mean of its divisors is an integer number (17596052640).

Almost surely, 2^123154154011 is an apocalyptic number.

123154154011 is a deficient number, since it is larger than the sum of its proper divisors (17614267109).

123154154011 is an equidigital number, since it uses as much as digits as its factorization.

123154154011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2602073.

The product of its (nonzero) digits is 2400, while the sum is 28.

The spelling of 123154154011 in words is "one hundred twenty-three billion, one hundred fifty-four million, one hundred fifty-four thousand, eleven".