2150123401 has 2 divisors, whose sum is σ = 2150123402. Its totient is φ = 2150123400.

The previous prime is 2150123369. The next prime is 2150123431. The reversal of 2150123401 is 1043210512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1572201801 + 577921600 = 39651^2 + 24040^2 .

It is a cyclic number.

It is not a de Polignac number, because 2150123401 - 2⁵ = 2150123369 is a prime.

It is not a weakly prime, because it can be changed into another prime (2150123431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1075061700 + 1075061701.

It is an arithmetic number, because the mean of its divisors is an integer number (1075061701).

Almost surely, 2^2150123401 is an apocalyptic number.

It is an amenable number.

2150123401 is a deficient number, since it is larger than the sum of its proper divisors (1).

2150123401 is an equidigital number, since it uses as much as digits as its factorization.

2150123401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 2150123401 is about 46369.4231255900. The cubic root of 2150123401 is about 1290.6875730838.

Adding to 2150123401 its reverse (1043210512), we get a palindrome (3193333913).

The spelling of 2150123401 in words is "two billion, one hundred fifty million, one hundred twenty-three thousand, four hundred one".