1023131401 has 4 divisors (see below), whose sum is σ = 1023614100. Its totient is φ = 1022648704.

The previous prime is 1023131377. The next prime is 1023131411. The reversal of 1023131401 is 1041313201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 653569225 + 369562176 = 25565^2 + 19224^2 .

It is a cyclic number.

It is not a de Polignac number, because 1023131401 - 2¹⁵ = 1023098633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1023131411) 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, 238156 + ... + 242413.

It is an arithmetic number, because the mean of its divisors is an integer number (255903525).

Almost surely, 2^1023131401 is an apocalyptic number.

It is an amenable number.

1023131401 is a deficient number, since it is larger than the sum of its proper divisors (482699).

1023131401 is an equidigital number, since it uses as much as digits as its factorization.

1023131401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482698.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1023131401 is about 31986.4252613511. The cubic root of 1023131401 is about 1007.6517681089.

Adding to 1023131401 its reverse (1041313201), we get a palindrome (2064444602).

The spelling of 1023131401 in words is "one billion, twenty-three million, one hundred thirty-one thousand, four hundred one".