1011630401545 has 4 divisors (see below), whose sum is σ = 1213956481860. Its totient is φ = 809304321232.

The previous prime is 1011630401527. The next prime is 1011630401563. The reversal of 1011630401545 is 5451040361101.

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

It is an interprime number because it is at equal distance from previous prime (1011630401527) and next prime (1011630401563).

It can be written as a sum of positive squares in 2 ways, for example, as 609373829376 + 402256572169 = 780624^2 + 634237^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011630401545 - 2²³ = 1011622012937 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101163040150 + ... + 101163040159.

It is an arithmetic number, because the mean of its divisors is an integer number (303489120465).

Almost surely, 2^{1011630401545} is an apocalyptic number.

It is an amenable number.

1011630401545 is a deficient number, since it is larger than the sum of its proper divisors (202326080315).

1011630401545 is an equidigital number, since it uses as much as digits as its factorization.

1011630401545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202326080314.

The product of its (nonzero) digits is 7200, while the sum is 31.

Adding to 1011630401545 its reverse (5451040361101), we get a palindrome (6462670762646).

The spelling of 1011630401545 in words is "one trillion, eleven billion, six hundred thirty million, four hundred one thousand, five hundred forty-five".