126012028125320 has 32 divisors (see below), whose sum is σ = 283527464923800. Its totient is φ = 50404739847168.

The previous prime is 126012028125317. The next prime is 126012028125323. The reversal of 126012028125320 is 23521820210621.

It is an interprime number because it is at equal distance from previous prime (126012028125317) and next prime (126012028125323).

It can be written as a sum of positive squares in 4 ways, for example, as 51956330789476 + 74055697335844 = 7208074^2 + 8605562^2 .

It is not an unprimeable number, because it can be changed into a prime (126012028125323) 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, 33371762 + ... + 36955358.

Almost surely, 2^{126012028125320} is an apocalyptic number.

126012028125320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126012028125320 is an abundant number, since it is smaller than the sum of its proper divisors (157515436798480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126012028125320 is a wasteful number, since it uses less digits than its factorization.

126012028125320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4462697 (or 4462693 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

Adding to 126012028125320 its reverse (23521820210621), we get a palindrome (149533848335941).

The spelling of 126012028125320 in words is "one hundred twenty-six trillion, twelve billion, twenty-eight million, one hundred twenty-five thousand, three hundred twenty".