123020450 has 48 divisors (see below), whose sum is σ = 262673664. Its totient is φ = 41990400.

The previous prime is 123020441. The next prime is 123020507. The reversal of 123020450 is 54020321.

It is a super-2 number, since 2×123020450² = 30268062236405000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94202 + ... + 95498.

It is an arithmetic number, because the mean of its divisors is an integer number (5472368).

Almost surely, 2^123020450 is an apocalyptic number.

123020450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123020450 is an abundant number, since it is smaller than the sum of its proper divisors (139653214).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123020450 is a wasteful number, since it uses less digits than its factorization.

123020450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1587 (or 1582 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 123020450 is about 11091.4584252929. The cubic root of 123020450 is about 497.3465432446.

Adding to 123020450 its reverse (54020321), we get a palindrome (177040771).

The spelling of 123020450 in words is "one hundred twenty-three million, twenty thousand, four hundred fifty".