31032145144106 has 4 divisors (see below), whose sum is σ = 46548217716162. Its totient is φ = 15516072572052.

The previous prime is 31032145144069. The next prime is 31032145144109. The reversal of 31032145144106 is 60144154123013.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 26528773070881 + 4503372073225 = 5150609^2 + 2122115^2 .

It is not an unprimeable number, because it can be changed into a prime (31032145144109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7758036286025 + ... + 7758036286028.

Almost surely, 2^{31032145144106} is an apocalyptic number.

31032145144106 is a deficient number, since it is larger than the sum of its proper divisors (15516072572056).

31032145144106 is a wasteful number, since it uses less digits than its factorization.

31032145144106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15516072572055.

The product of its (nonzero) digits is 34560, while the sum is 35.

Adding to 31032145144106 its reverse (60144154123013), we get a palindrome (91176299267119).

The spelling of 31032145144106 in words is "thirty-one trillion, thirty-two billion, one hundred forty-five million, one hundred forty-four thousand, one hundred six".