31243111454 has 16 divisors (see below), whose sum is σ = 47562197760. Its totient is φ = 15390761880.

The previous prime is 31243111451. The next prime is 31243111463. The reversal of 31243111454 is 45411134213.

It is a super-2 number, since 2×31243111454² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31243111451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 392534 + ... + 465369.

It is an arithmetic number, because the mean of its divisors is an integer number (2972637360).

Almost surely, 2^31243111454 is an apocalyptic number.

31243111454 is a deficient number, since it is larger than the sum of its proper divisors (16319086306).

31243111454 is a wasteful number, since it uses less digits than its factorization.

31243111454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858175.

The product of its digits is 5760, while the sum is 29.

Adding to 31243111454 its reverse (45411134213), we get a palindrome (76654245667).

The spelling of 31243111454 in words is "thirty-one billion, two hundred forty-three million, one hundred eleven thousand, four hundred fifty-four".