31144044143010 has 64 divisors (see below), whose sum is σ = 75249738720000. Its totient is φ = 8249078330112.

The previous prime is 31144044142987. The next prime is 31144044143011. The reversal of 31144044143010 is 1034144044113.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (31144044143011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 170515216 + ... + 170697764.

It is an arithmetic number, because the mean of its divisors is an integer number (1175777167500).

Almost surely, 2^{31144044143010} is an apocalyptic number.

31144044143010 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31144044143010 is an abundant number, since it is smaller than the sum of its proper divisors (44105694576990).

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

31144044143010 is a wasteful number, since it uses less digits than its factorization.

31144044143010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220875.

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 31144044143010 its reverse (1034144044113), we get a palindrome (32178188187123).

The spelling of 31144044143010 in words is "thirty-one trillion, one hundred forty-four billion, forty-four million, one hundred forty-three thousand, ten".