123533131154 has 8 divisors (see below), whose sum is σ = 185301312768. Its totient is φ = 61766026900.

The previous prime is 123533131093. The next prime is 123533131157. The reversal of 123533131154 is 451131335321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×123533131154² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123533131154.

It is not an unprimeable number, because it can be changed into a prime (123533131157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144479 + ... + 517629.

It is an arithmetic number, because the mean of its divisors is an integer number (23162664096).

Almost surely, 2^123533131154 is an apocalyptic number.

123533131154 is a deficient number, since it is larger than the sum of its proper divisors (61768181614).

123533131154 is a wasteful number, since it uses less digits than its factorization.

123533131154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538680.

The product of its digits is 16200, while the sum is 32.

Adding to 123533131154 its reverse (451131335321), we get a palindrome (574664466475).

The spelling of 123533131154 in words is "one hundred twenty-three billion, five hundred thirty-three million, one hundred thirty-one thousand, one hundred fifty-four".