31144214402 has 32 divisors (see below), whose sum is σ = 54201005184. Its totient is φ = 13145328000.

The previous prime is 31144214369. The next prime is 31144214429. The reversal of 31144214402 is 20441244113.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 684152 + ... + 728252.

It is an arithmetic number, because the mean of its divisors is an integer number (1693781412).

Almost surely, 2^31144214402 is an apocalyptic number.

31144214402 is a deficient number, since it is larger than the sum of its proper divisors (23056790782).

31144214402 is a wasteful number, since it uses less digits than its factorization.

31144214402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44874.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 31144214402 its reverse (20441244113), we get a palindrome (51585458515).

The spelling of 31144214402 in words is "thirty-one billion, one hundred forty-four million, two hundred fourteen thousand, four hundred two".