123011301421 has 4 divisors (see below), whose sum is σ = 123226733344. Its totient is φ = 122795869500.

The previous prime is 123011301397. The next prime is 123011301431. The reversal of 123011301421 is 124103110321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123011301421 - 2¹¹ = 123011299373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123011301431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107715105 + ... + 107716246.

It is an arithmetic number, because the mean of its divisors is an integer number (30806683336).

Almost surely, 2^123011301421 is an apocalyptic number.

It is an amenable number.

123011301421 is a deficient number, since it is larger than the sum of its proper divisors (215431923).

123011301421 is an equidigital number, since it uses as much as digits as its factorization.

123011301421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215431922.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 123011301421 its reverse (124103110321), we get a palindrome (247114411742).

The spelling of 123011301421 in words is "one hundred twenty-three billion, eleven million, three hundred one thousand, four hundred twenty-one".