123141021 has 8 divisors (see below), whose sum is σ = 169484544. Its totient is φ = 79445760.

The previous prime is 123141019. The next prime is 123141089. The reversal of 123141021 is 120141321.

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

It is not a de Polignac number, because 123141021 - 2¹ = 123141019 is a prime.

It is a super-2 number, since 2×123141021² = 30327422105844882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123141521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 661956 + ... + 662141.

It is an arithmetic number, because the mean of its divisors is an integer number (21185568).

Almost surely, 2^123141021 is an apocalyptic number.

It is an amenable number.

123141021 is a deficient number, since it is larger than the sum of its proper divisors (46343523).

123141021 is a wasteful number, since it uses less digits than its factorization.

123141021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1324131.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 123141021 is about 11096.8924028306. The cubic root of 123141021 is about 497.5089714972.

Adding to 123141021 its reverse (120141321), we get a palindrome (243282342).

The spelling of 123141021 in words is "one hundred twenty-three million, one hundred forty-one thousand, twenty-one".