23400536311131 has 32 divisors (see below), whose sum is σ = 35734225390080. Its totient is φ = 13343154333696.

The previous prime is 23400536311121. The next prime is 23400536311183. The reversal of 23400536311131 is 13111363500432.

It is not a de Polignac number, because 23400536311131 - 2¹⁹ = 23400535786843 is a prime.

It is a super-2 number, since 2×23400536311131² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23400536311092 and 23400536311101.

It is not an unprimeable number, because it can be changed into a prime (23400536311121) 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, 29623980 + ... + 30403638.

It is an arithmetic number, because the mean of its divisors is an integer number (1116694543440).

Almost surely, 2^{23400536311131} is an apocalyptic number.

23400536311131 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

23400536311131 is a deficient number, since it is larger than the sum of its proper divisors (12333689078949).

23400536311131 is a wasteful number, since it uses less digits than its factorization.

23400536311131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782723.

The product of its (nonzero) digits is 19440, while the sum is 33.

Adding to 23400536311131 its reverse (13111363500432), we get a palindrome (36511899811563).

The spelling of 23400536311131 in words is "twenty-three trillion, four hundred billion, five hundred thirty-six million, three hundred eleven thousand, one hundred thirty-one".