1234021452531 has 32 divisors (see below), whose sum is σ = 1902461644800. Its totient is φ = 696894781440.

The previous prime is 1234021452529. The next prime is 1234021452541. The reversal of 1234021452531 is 1352541204321.

It is not a de Polignac number, because 1234021452531 - 2¹ = 1234021452529 is a prime.

It is a super-2 number, since 2×1234021452531² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1234021452492 and 1234021452501.

It is not an unprimeable number, because it can be changed into a prime (1234021452541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3730750 + ... + 4048028.

It is an arithmetic number, because the mean of its divisors is an integer number (59451926400).

Almost surely, 2^{1234021452531} is an apocalyptic number.

1234021452531 is a deficient number, since it is larger than the sum of its proper divisors (668440192269).

1234021452531 is a wasteful number, since it uses less digits than its factorization.

1234021452531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319459.

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 1234021452531 its reverse (1352541204321), we get a palindrome (2586562656852).

The spelling of 1234021452531 in words is "one trillion, two hundred thirty-four billion, twenty-one million, four hundred fifty-two thousand, five hundred thirty-one".