1031231423123 has 64 divisors (see below), whose sum is σ = 1192626339840. Its totient is φ = 883449504000.

The previous prime is 1031231423107. The next prime is 1031231423153. The reversal of 1031231423123 is 3213241321301.

It is a happy number.

It is not a de Polignac number, because 1031231423123 - 2⁴ = 1031231423107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1031231423092 and 1031231423101.

It is not an unprimeable number, because it can be changed into a prime (1031231423153) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 336233036 + ... + 336236102.

It is an arithmetic number, because the mean of its divisors is an integer number (18634786560).

Almost surely, 2^{1031231423123} is an apocalyptic number.

1031231423123 is a deficient number, since it is larger than the sum of its proper divisors (161394916717).

1031231423123 is a wasteful number, since it uses less digits than its factorization.

1031231423123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3408.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 1031231423123 its reverse (3213241321301), we get a palindrome (4244472744424).

The spelling of 1031231423123 in words is "one trillion, thirty-one billion, two hundred thirty-one million, four hundred twenty-three thousand, one hundred twenty-three".