123455132510 has 16 divisors (see below), whose sum is σ = 222224490576. Its totient is φ = 49380885888.

The previous prime is 123455132501. The next prime is 123455132579. The reversal of 123455132510 is 15231554321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393254 + ... + 633686.

It is an arithmetic number, because the mean of its divisors is an integer number (13889030661).

Almost surely, 2^123455132510 is an apocalyptic number.

123455132510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123455132510 is a deficient number, since it is larger than the sum of its proper divisors (98769358066).

123455132510 is a wasteful number, since it uses less digits than its factorization.

123455132510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291787.

The product of its (nonzero) digits is 18000, while the sum is 32.

Adding to 123455132510 its reverse (15231554321), we get a palindrome (138686686831).

The spelling of 123455132510 in words is "one hundred twenty-three billion, four hundred fifty-five million, one hundred thirty-two thousand, five hundred ten".