1255357721130 has 16 divisors (see below), whose sum is σ = 3012858530784. Its totient is φ = 334762058960.

The previous prime is 1255357721119. The next prime is 1255357721131. The reversal of 1255357721130 is 311277535521.

It is not an unprimeable number, because it can be changed into a prime (1255357721131) 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, 20922628656 + ... + 20922628715.

It is an arithmetic number, because the mean of its divisors is an integer number (188303658174).

Almost surely, 2^{1255357721130} is an apocalyptic number.

1255357721130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1255357721130 is an abundant number, since it is smaller than the sum of its proper divisors (1757500809654).

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

1255357721130 is a wasteful number, since it uses less digits than its factorization.

1255357721130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41845257381.

The product of its (nonzero) digits is 220500, while the sum is 42.

The spelling of 1255357721130 in words is "one trillion, two hundred fifty-five billion, three hundred fifty-seven million, seven hundred twenty-one thousand, one hundred thirty".