31342013209978 has 16 divisors (see below), whose sum is σ = 47033876451744. Its totient is φ = 15664055734800.

The previous prime is 31342013209963. The next prime is 31342013210023. The reversal of 31342013209978 is 87990231024313.

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, 47118301 + ... + 47778847.

It is an arithmetic number, because the mean of its divisors is an integer number (2939617278234).

Almost surely, 2^{31342013209978} is an apocalyptic number.

31342013209978 is a deficient number, since it is larger than the sum of its proper divisors (15691863241766).

31342013209978 is a wasteful number, since it uses less digits than its factorization.

31342013209978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671037.

The product of its (nonzero) digits is 1959552, while the sum is 52.

The spelling of 31342013209978 in words is "thirty-one trillion, three hundred forty-two billion, thirteen million, two hundred nine thousand, nine hundred seventy-eight".