2031421401 has 6 divisors (see below), whose sum is σ = 2934275370. Its totient is φ = 1354280928.

The previous prime is 2031421391. The next prime is 2031421421. The reversal of 2031421401 is 1041241302.

2031421401 is a `hidden beast` number, since 203 + 1 + 421 + 40 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1620143001 + 411278400 = 40251^2 + 20280^2 .

It is not a de Polignac number, because 2031421401 - 2²¹ = 2029324249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2031421421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 112856736 + ... + 112856753.

It is an arithmetic number, because the mean of its divisors is an integer number (489045895).

Almost surely, 2^2031421401 is an apocalyptic number.

It is an amenable number.

2031421401 is a deficient number, since it is larger than the sum of its proper divisors (902853969).

2031421401 is a wasteful number, since it uses less digits than its factorization.

2031421401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225713495 (or 225713492 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2031421401 is about 45071.2924265546. The cubic root of 2031421401 is about 1266.4848756266.

Adding to 2031421401 its reverse (1041241302), we get a palindrome (3072662703).

The spelling of 2031421401 in words is "two billion, thirty-one million, four hundred twenty-one thousand, four hundred one".