1223531140451 has 8 divisors (see below), whose sum is σ = 1224209126400. Its totient is φ = 1222853299272.

The previous prime is 1223531140439. The next prime is 1223531140577. The reversal of 1223531140451 is 1540411353221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1223531140451 is a prime.

It is a super-3 number, since 3×1223531140451³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223531140651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19792076 + ... + 19853798.

It is an arithmetic number, because the mean of its divisors is an integer number (153026140800).

Almost surely, 2^{1223531140451} is an apocalyptic number.

1223531140451 is a deficient number, since it is larger than the sum of its proper divisors (677985949).

1223531140451 is an equidigital number, since it uses as much as digits as its factorization.

1223531140451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72385.

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 1223531140451 its reverse (1540411353221), we get a palindrome (2763942493672).

The spelling of 1223531140451 in words is "one trillion, two hundred twenty-three billion, five hundred thirty-one million, one hundred forty thousand, four hundred fifty-one".