103451445531 has 12 divisors (see below), whose sum is σ = 170776989552. Its totient is φ = 59115111696.

The previous prime is 103451445527. The next prime is 103451445541. The reversal of 103451445531 is 135544154301.

103451445531 is a `hidden beast` number, since 1 + 0 + 34 + 51 + 4 + 45 + 531 = 666.

It is not a de Polignac number, because 103451445531 - 2² = 103451445527 is a prime.

It is a super-2 number, since 2×103451445531² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (103451445541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 821043156 + ... + 821043281.

It is an arithmetic number, because the mean of its divisors is an integer number (14231415796).

Almost surely, 2^103451445531 is an apocalyptic number.

103451445531 is a deficient number, since it is larger than the sum of its proper divisors (67325544021).

103451445531 is a wasteful number, since it uses less digits than its factorization.

103451445531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1642086450 (or 1642086447 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 103451445531 its reverse (135544154301), we get a palindrome (238995599832).

The spelling of 103451445531 in words is "one hundred three billion, four hundred fifty-one million, four hundred forty-five thousand, five hundred thirty-one".