31551011045 has 8 divisors (see below), whose sum is σ = 38000924160. Its totient is φ = 25147668240.

The previous prime is 31551011033. The next prime is 31551011057. The reversal of 31551011045 is 54011015513.

It is an interprime number because it is at equal distance from previous prime (31551011033) and next prime (31551011057).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31551011045 - 2⁸ = 31551010789 is a prime.

It is a congruent number.

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, 11641085 + ... + 11643794.

It is an arithmetic number, because the mean of its divisors is an integer number (4750115520).

Almost surely, 2^31551011045 is an apocalyptic number.

It is an amenable number.

31551011045 is a deficient number, since it is larger than the sum of its proper divisors (6449913115).

31551011045 is a wasteful number, since it uses less digits than its factorization.

31551011045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23285155.

The product of its (nonzero) digits is 1500, while the sum is 26.

Adding to 31551011045 its reverse (54011015513), we get a palindrome (85562026558).

The spelling of 31551011045 in words is "thirty-one billion, five hundred fifty-one million, eleven thousand, forty-five".