1031421242103 has 16 divisors (see below), whose sum is σ = 1593219507456. Its totient is φ = 581309818560.

The previous prime is 1031421241997. The next prime is 1031421242123. The reversal of 1031421242103 is 3012421241301.

It is not a de Polignac number, because 1031421242103 - 2¹² = 1031421238007 is a prime.

It is a super-2 number, since 2×1031421242103² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031421242123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 336404613 + ... + 336407678.

It is an arithmetic number, because the mean of its divisors is an integer number (99576219216).

Almost surely, 2^{1031421242103} is an apocalyptic number.

1031421242103 is a deficient number, since it is larger than the sum of its proper divisors (561798265353).

1031421242103 is an equidigital number, since it uses as much as digits as its factorization.

1031421242103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672812374.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 1031421242103 its reverse (3012421241301), we get a palindrome (4043842483404).

The spelling of 1031421242103 in words is "one trillion, thirty-one billion, four hundred twenty-one million, two hundred forty-two thousand, one hundred three".