2400020233531 has 2 divisors, whose sum is σ = 2400020233532. Its totient is φ = 2400020233530.

The previous prime is 2400020233519. The next prime is 2400020233553. The reversal of 2400020233531 is 1353320200042.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2400020233531 - 2²⁵ = 2399986679099 is a prime.

It is a super-2 number, since 2×2400020233531² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2400020233496 and 2400020233505.

It is not a weakly prime, because it can be changed into another prime (2400020233931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1200010116765 + 1200010116766.

It is an arithmetic number, because the mean of its divisors is an integer number (1200010116766).

Almost surely, 2^{2400020233531} is an apocalyptic number.

2400020233531 is a deficient number, since it is larger than the sum of its proper divisors (1).

2400020233531 is an equidigital number, since it uses as much as digits as its factorization.

2400020233531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 2400020233531 its reverse (1353320200042), we get a palindrome (3753340433573).

The spelling of 2400020233531 in words is "two trillion, four hundred billion, twenty million, two hundred thirty-three thousand, five hundred thirty-one".