2021031401 has 4 divisors (see below), whose sum is σ = 2049496704. Its totient is φ = 1992566100.

The previous prime is 2021031377. The next prime is 2021031469. The reversal of 2021031401 is 1041301202.

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 a de Polignac number, because none of the positive numbers 2^k-2021031401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021031101) 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, 14232545 + ... + 14232686.

It is an arithmetic number, because the mean of its divisors is an integer number (512374176).

Almost surely, 2^2021031401 is an apocalyptic number.

It is an amenable number.

2021031401 is a deficient number, since it is larger than the sum of its proper divisors (28465303).

2021031401 is an equidigital number, since it uses as much as digits as its factorization.

2021031401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28465302.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2021031401 is about 44955.8828297254. The cubic root of 2021031401 is about 1264.3219769496.

Adding to 2021031401 its reverse (1041301202), we get a palindrome (3062332603).

The spelling of 2021031401 in words is "two billion, twenty-one million, thirty-one thousand, four hundred one".