123421132 has 6 divisors (see below), whose sum is σ = 215986988. Its totient is φ = 61710564.

The previous prime is 123421121. The next prime is 123421171. The reversal of 123421132 is 231124321.

It is a happy number.

It is a super-2 number, since 2×123421132² = 30465551648322848, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15427638 + ... + 15427645.

Almost surely, 2^123421132 is an apocalyptic number.

It is an amenable number.

123421132 is a deficient number, since it is larger than the sum of its proper divisors (92565856).

123421132 is a wasteful number, since it uses less digits than its factorization.

123421132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30855287 (or 30855285 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 123421132 is about 11109.5063796732. The cubic root of 123421132 is about 497.8859165672.

Adding to 123421132 its reverse (231124321), we get a palindrome (354545453).

It can be divided in two parts, 1234 and 21132, that added together give a triangular number (22366 = T₂₁₁).

The spelling of 123421132 in words is "one hundred twenty-three million, four hundred twenty-one thousand, one hundred thirty-two".