1230420401 has 4 divisors (see below), whose sum is σ = 1406194752. Its totient is φ = 1054646052.

The previous prime is 1230420371. The next prime is 1230420419. The reversal of 1230420401 is 1040240321.

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 1230420401 - 2⁶ = 1230420337 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1230420401.

It is not an unprimeable number, because it can be changed into a prime (1230420421) 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, 87887165 + ... + 87887178.

It is an arithmetic number, because the mean of its divisors is an integer number (351548688).

Almost surely, 2^1230420401 is an apocalyptic number.

It is an amenable number.

1230420401 is a deficient number, since it is larger than the sum of its proper divisors (175774351).

1230420401 is an equidigital number, since it uses as much as digits as its factorization.

1230420401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175774350.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1230420401 is about 35077.3488308338. The cubic root of 1230420401 is about 1071.5633248867.

Adding to 1230420401 its reverse (1040240321), we get a palindrome (2270660722).

The spelling of 1230420401 in words is "one billion, two hundred thirty million, four hundred twenty thousand, four hundred one".