31004421342103 has 16 divisors (see below), whose sum is σ = 33983635746816. Its totient is φ = 28052045367840.

The previous prime is 31004421342101. The next prime is 31004421342107. The reversal of 31004421342103 is 30124312440013.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 31004421342103 - 2¹ = 31004421342101 is a prime.

It is a super-2 number, since 2×31004421342103² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31004421342101) 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, 7649650 + ... + 10978432.

It is an arithmetic number, because the mean of its divisors is an integer number (2123977234176).

Almost surely, 2^{31004421342103} is an apocalyptic number.

31004421342103 is a deficient number, since it is larger than the sum of its proper divisors (2979214404713).

31004421342103 is a wasteful number, since it uses less digits than its factorization.

31004421342103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3332814.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 31004421342103 its reverse (30124312440013), we get a palindrome (61128733782116).

The spelling of 31004421342103 in words is "thirty-one trillion, four billion, four hundred twenty-one million, three hundred forty-two thousand, one hundred three".