31420455042542 has 16 divisors (see below), whose sum is σ = 49903763415840. Its totient is φ = 14785892709888.

The previous prime is 31420455042541. The next prime is 31420455042577. The reversal of 31420455042542 is 24524055402413.

It is a self number, because there is not a number n which added to its sum of digits gives 31420455042542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31420455042541) 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, 3850442 + ... + 8812877.

It is an arithmetic number, because the mean of its divisors is an integer number (3118985213490).

Almost surely, 2^{31420455042542} is an apocalyptic number.

31420455042542 is a deficient number, since it is larger than the sum of its proper divisors (18483308373298).

31420455042542 is a wasteful number, since it uses less digits than its factorization.

31420455042542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12736315.

The product of its (nonzero) digits is 768000, while the sum is 41.

The spelling of 31420455042542 in words is "thirty-one trillion, four hundred twenty billion, four hundred fifty-five million, forty-two thousand, five hundred forty-two".