1031100401 has 2 divisors, whose sum is σ = 1031100402. Its totient is φ = 1031100400.

The previous prime is 1031100359. The next prime is 1031100409. The reversal of 1031100401 is 1040011301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 635090401 + 396010000 = 25201^2 + 19900^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1031100401 is a prime.

It is not a weakly prime, because it can be changed into another prime (1031100409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515550200 + 515550201.

It is an arithmetic number, because the mean of its divisors is an integer number (515550201).

Almost surely, 2^1031100401 is an apocalyptic number.

It is an amenable number.

1031100401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031100401 is an equidigital number, since it uses as much as digits as its factorization.

1031100401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1031100401 is about 32110.7521089121. The cubic root of 1031100401 is about 1010.2611490180.

Adding to 1031100401 its reverse (1040011301), we get a palindrome (2071111702).

The spelling of 1031100401 in words is "one billion, thirty-one million, one hundred thousand, four hundred one".