31415530201145 has 32 divisors (see below), whose sum is σ = 40553760192000. Its totient is φ = 23292603959040.

The previous prime is 31415530201123. The next prime is 31415530201157. The reversal of 31415530201145 is 54110203551413.

It is a happy number.

It is not a de Polignac number, because 31415530201145 - 2³⁸ = 31140652294201 is a prime.

It is a super-2 number, since 2×31415530201145² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18383546 + ... + 20019635.

It is an arithmetic number, because the mean of its divisors is an integer number (1267305006000).

Almost surely, 2^{31415530201145} is an apocalyptic number.

It is an amenable number.

31415530201145 is a deficient number, since it is larger than the sum of its proper divisors (9138229990855).

31415530201145 is a wasteful number, since it uses less digits than its factorization.

31415530201145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38403393.

The product of its (nonzero) digits is 36000, while the sum is 35.

Adding to 31415530201145 its reverse (54110203551413), we get a palindrome (85525733752558).

The spelling of 31415530201145 in words is "thirty-one trillion, four hundred fifteen billion, five hundred thirty million, two hundred one thousand, one hundred forty-five".