1031240121231 has 8 divisors (see below), whose sum is σ = 1376544008320. Its totient is φ = 686714824152.

The previous prime is 1031240121209. The next prime is 1031240121277. The reversal of 1031240121231 is 1321210421301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1031240121231 - 2⁶ = 1031240121167 is a prime.

It is a super-2 number, since 2×1031240121231² (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 = 1031240121198 and 1031240121207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031240121281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194644411 + ... + 194649708.

It is an arithmetic number, because the mean of its divisors is an integer number (172068001040).

Almost surely, 2^{1031240121231} is an apocalyptic number.

1031240121231 is a deficient number, since it is larger than the sum of its proper divisors (345303887089).

1031240121231 is an equidigital number, since it uses as much as digits as its factorization.

1031240121231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389295005.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1031240121231 its reverse (1321210421301), we get a palindrome (2352450542532).

The spelling of 1031240121231 in words is "one trillion, thirty-one billion, two hundred forty million, one hundred twenty-one thousand, two hundred thirty-one".