123131054 has 4 divisors (see below), whose sum is σ = 184696584. Its totient is φ = 61565526.

The previous prime is 123131033. The next prime is 123131083. The reversal of 123131054 is 450131321.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×123131054³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30782762 + ... + 30782765.

It is an arithmetic number, because the mean of its divisors is an integer number (46174146).

Almost surely, 2^123131054 is an apocalyptic number.

123131054 is a deficient number, since it is larger than the sum of its proper divisors (61565530).

123131054 is an equidigital number, since it uses as much as digits as its factorization.

123131054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61565529.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 123131054 is about 11096.4433040502. The cubic root of 123131054 is about 497.4955483891.

Adding to 123131054 its reverse (450131321), we get a palindrome (573262375).

The spelling of 123131054 in words is "one hundred twenty-three million, one hundred thirty-one thousand, fifty-four".