1031120401 has 4 divisors (see below), whose sum is σ = 1045245412. Its totient is φ = 1016995392.

The previous prime is 1031120381. The next prime is 1031120437. The reversal of 1031120401 is 1040211301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1040211301 = 17077 ⋅60913.

It can be written as a sum of positive squares in 2 ways, for example, as 605110801 + 426009600 = 24599^2 + 20640^2 .

It is a cyclic number.

It is not a de Polignac number, because 1031120401 - 2⁵ = 1031120369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1031120501) 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, 7062396 + ... + 7062541.

It is an arithmetic number, because the mean of its divisors is an integer number (261311353).

Almost surely, 2^1031120401 is an apocalyptic number.

It is an amenable number.

1031120401 is a deficient number, since it is larger than the sum of its proper divisors (14125011).

1031120401 is an equidigital number, since it uses as much as digits as its factorization.

1031120401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14125010.

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

The square root of 1031120401 is about 32111.0635295687. The cubic root of 1031120401 is about 1010.2676809045.

Adding to 1031120401 its reverse (1040211301), we get a palindrome (2071331702).

The spelling of 1031120401 in words is "one billion, thirty-one million, one hundred twenty thousand, four hundred one".