1023421100131 has 4 divisors (see below), whose sum is σ = 1038696041992. Its totient is φ = 1008146158272.

The previous prime is 1023421100129. The next prime is 1023421100161. The reversal of 1023421100131 is 1310011243201.

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

It is a cyclic number.

It is not a de Polignac number, because 1023421100131 - 2¹ = 1023421100129 is a prime.

It is a super-2 number, since 2×1023421100131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1023421100099 and 1023421100108.

It is not an unprimeable number, because it can be changed into a prime (1023421100161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7637470830 + ... + 7637470963.

It is an arithmetic number, because the mean of its divisors is an integer number (259674010498).

Almost surely, 2^{1023421100131} is an apocalyptic number.

1023421100131 is a deficient number, since it is larger than the sum of its proper divisors (15274941861).

1023421100131 is an equidigital number, since it uses as much as digits as its factorization.

1023421100131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15274941860.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1023421100131 its reverse (1310011243201), we get a palindrome (2333432343332).

The spelling of 1023421100131 in words is "one trillion, twenty-three billion, four hundred twenty-one million, one hundred thousand, one hundred thirty-one".