123012461 has 16 divisors (see below), whose sum is σ = 149506560. Its totient is φ = 99664320.

The previous prime is 123012431. The next prime is 123012467. The reversal of 123012461 is 164210321.

It is a cyclic number.

It is not a de Polignac number, because 123012461 - 2⁶ = 123012397 is a prime.

It is a super-2 number, since 2×123012461² = 30264131122553042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123012467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10685 + ... + 18978.

It is an arithmetic number, because the mean of its divisors is an integer number (9344160).

Almost surely, 2^123012461 is an apocalyptic number.

123012461 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

123012461 is a deficient number, since it is larger than the sum of its proper divisors (26494099).

123012461 is a wasteful number, since it uses less digits than its factorization.

123012461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29716.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 123012461 is about 11091.0982774475. The cubic root of 123012461 is about 497.3357770466.

Adding to 123012461 its reverse (164210321), we get a palindrome (287222782).

The spelling of 123012461 in words is "one hundred twenty-three million, twelve thousand, four hundred sixty-one".