1031421001 has 16 divisors (see below), whose sum is σ = 1132427520. Its totient is φ = 933606720.

The previous prime is 1031420987. The next prime is 1031421011. The reversal of 1031421001 is 1001241301.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1031421001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1031421011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282876 + ... + 286498.

It is an arithmetic number, because the mean of its divisors is an integer number (70776720).

Almost surely, 2^1031421001 is an apocalyptic number.

It is an amenable number.

1031421001 is a deficient number, since it is larger than the sum of its proper divisors (101006519).

1031421001 is a wasteful number, since it uses less digits than its factorization.

1031421001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4056.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1031421001 is about 32115.7438182584. The cubic root of 1031421001 is about 1010.3658449852.

Adding to 1031421001 its reverse (1001241301), we get a palindrome (2032662302).

The spelling of 1031421001 in words is "one billion, thirty-one million, four hundred twenty-one thousand, one".