1045451202531 has 16 divisors (see below), whose sum is σ = 1398090322944. Its totient is φ = 694890173984.

The previous prime is 1045451202527. The next prime is 1045451202539. The reversal of 1045451202531 is 1352021545401.

It is a cyclic number.

It is not a de Polignac number, because 1045451202531 - 2² = 1045451202527 is a prime.

It is a super-2 number, since 2×1045451202531² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1045451202492 and 1045451202501.

It is not an unprimeable number, because it can be changed into a prime (1045451202539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11847385 + ... + 11935301.

It is an arithmetic number, because the mean of its divisors is an integer number (87380645184).

Almost surely, 2^{1045451202531} is an apocalyptic number.

1045451202531 is a deficient number, since it is larger than the sum of its proper divisors (352639120413).

1045451202531 is a wasteful number, since it uses less digits than its factorization.

1045451202531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99690.

The product of its (nonzero) digits is 24000, while the sum is 33.

Adding to 1045451202531 its reverse (1352021545401), we get a palindrome (2397472747932).

The spelling of 1045451202531 in words is "one trillion, forty-five billion, four hundred fifty-one million, two hundred two thousand, five hundred thirty-one".