1031240121229 has 4 divisors (see below), whose sum is σ = 1031242235584. Its totient is φ = 1031238006876.

The previous prime is 1031240121209. The next prime is 1031240121277. The reversal of 1031240121229 is 9221210421301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1031240121229 - 2¹⁹ = 1031239596941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1031240121197 and 1031240121206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031240121209) 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, 87724 + ... + 1438810.

It is an arithmetic number, because the mean of its divisors is an integer number (257810558896).

Almost surely, 2^{1031240121229} is an apocalyptic number.

It is an amenable number.

1031240121229 is a deficient number, since it is larger than the sum of its proper divisors (2114355).

1031240121229 is an equidigital number, since it uses as much as digits as its factorization.

1031240121229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2114354.

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 1031240121229 in words is "one trillion, thirty-one billion, two hundred forty million, one hundred twenty-one thousand, two hundred twenty-nine".