31243355454 has 16 divisors (see below), whose sum is σ = 62585746560. Its totient is φ = 10397945880.

The previous prime is 31243355387. The next prime is 31243355567. The reversal of 31243355454 is 45455334213.

It is a super-2 number, since 2×31243355454² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4122384 + ... + 4129955.

It is an arithmetic number, because the mean of its divisors is an integer number (3911609160).

Almost surely, 2^31243355454 is an apocalyptic number.

31243355454 is an abundant number, since it is smaller than the sum of its proper divisors (31342391106).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31243355454 is a wasteful number, since it uses less digits than its factorization.

31243355454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8252975.

The product of its digits is 432000, while the sum is 39.

Adding to 31243355454 its reverse (45455334213), we get a palindrome (76698689667).

The spelling of 31243355454 in words is "thirty-one billion, two hundred forty-three million, three hundred fifty-five thousand, four hundred fifty-four".